Home / 577,331.60-865,997.40-328,499.60

Finding the Fourth Proportional to 577,331.60, 865,997.40 and 328,499.60

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Solution

The fourth proportional to 577,331.60, 865,997.40 and 328,499.60 is: 492,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,331.60 : 865,997.40 = 328,499.60 : x
  2. Step 2: Convert to fraction form
    577,331.60/865,997.40 = 328,499.60/x
  3. Step 3: Cross multiply
    577,331.60x = 865,997.40 × 328,499.60
  4. Step 4: Simplify right side
    577,331.60x = 284,479,799,501.04
  5. Step 5: Solve for x
    x = 284,479,799,501.04/577,331.60
  6. Step 6: Final answer
    x = 492,749.40

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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.