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Finding the Fourth Proportional to 609,066.54, 912,997.17 and 288,655.26

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Solution

The fourth proportional to 609,066.54, 912,997.17 and 288,655.26 is: 432,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,066.54 : 912,997.17 = 288,655.26 : x
  2. Step 2: Convert to fraction form
    609,066.54/912,997.17 = 288,655.26/x
  3. Step 3: Cross multiply
    609,066.54x = 912,997.17 × 288,655.26
  4. Step 4: Simplify right side
    609,066.54x = 263,541,435,485.61
  5. Step 5: Solve for x
    x = 263,541,435,485.61/609,066.54
  6. Step 6: Final answer
    x = 432,697.28

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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.