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Finding the Fourth Proportional to 515,151.40, 772,727.10 and 291,202.60

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Solution

The fourth proportional to 515,151.40, 772,727.10 and 291,202.60 is: 436,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,151.40 : 772,727.10 = 291,202.60 : x
  2. Step 2: Convert to fraction form
    515,151.40/772,727.10 = 291,202.60/x
  3. Step 3: Cross multiply
    515,151.40x = 772,727.10 × 291,202.60
  4. Step 4: Simplify right side
    515,151.40x = 225,020,140,610.46
  5. Step 5: Solve for x
    x = 225,020,140,610.46/515,151.40
  6. Step 6: Final answer
    x = 436,803.90

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Similar ratio
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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.