Home / 851,255.80-1,276,883.70-496,670.20

Finding the Fourth Proportional to 851,255.80, 1,276,883.70 and 496,670.20

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Solution

The fourth proportional to 851,255.80, 1,276,883.70 and 496,670.20 is: 745,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,255.80 : 1,276,883.70 = 496,670.20 : x
  2. Step 2: Convert to fraction form
    851,255.80/1,276,883.70 = 496,670.20/x
  3. Step 3: Cross multiply
    851,255.80x = 1,276,883.70 × 496,670.20
  4. Step 4: Simplify right side
    851,255.80x = 634,190,082,655.74
  5. Step 5: Solve for x
    x = 634,190,082,655.74/851,255.80
  6. Step 6: Final answer
    x = 745,005.30

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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.