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Finding the Fourth Proportional to 709,327.02, 977,727.51 and 479,800.46

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Solution

The fourth proportional to 709,327.02, 977,727.51 and 479,800.46 is: 661,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,327.02 : 977,727.51 = 479,800.46 : x
  2. Step 2: Convert to fraction form
    709,327.02/977,727.51 = 479,800.46/x
  3. Step 3: Cross multiply
    709,327.02x = 977,727.51 × 479,800.46
  4. Step 4: Simplify right side
    709,327.02x = 469,114,111,496.97
  5. Step 5: Solve for x
    x = 469,114,111,496.97/709,327.02
  6. Step 6: Final answer
    x = 661,350.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.