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Finding the Fourth Proportional to 651,159.80, 976,739.70 and 336,231.80

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Solution

The fourth proportional to 651,159.80, 976,739.70 and 336,231.80 is: 504,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,159.80 : 976,739.70 = 336,231.80 : x
  2. Step 2: Convert to fraction form
    651,159.80/976,739.70 = 336,231.80/x
  3. Step 3: Cross multiply
    651,159.80x = 976,739.70 × 336,231.80
  4. Step 4: Simplify right side
    651,159.80x = 328,410,947,462.46
  5. Step 5: Solve for x
    x = 328,410,947,462.46/651,159.80
  6. Step 6: Final answer
    x = 504,347.70

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Half scale
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Double scale
Find fourth proportional to 651,160.80, 976,741.20 and 336,232.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.