Home / 651,325.20-976,987.80-402,493.20

Finding the Fourth Proportional to 651,325.20, 976,987.80 and 402,493.20

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Solution

The fourth proportional to 651,325.20, 976,987.80 and 402,493.20 is: 603,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,325.20 : 976,987.80 = 402,493.20 : x
  2. Step 2: Convert to fraction form
    651,325.20/976,987.80 = 402,493.20/x
  3. Step 3: Cross multiply
    651,325.20x = 976,987.80 × 402,493.20
  4. Step 4: Simplify right side
    651,325.20x = 393,230,945,982.96
  5. Step 5: Solve for x
    x = 393,230,945,982.96/651,325.20
  6. Step 6: Final answer
    x = 603,739.80

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Half scale
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Double scale
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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.