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Finding the Fourth Proportional to 615,110.90, 922,666.35 and 490,694.90

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Solution

The fourth proportional to 615,110.90, 922,666.35 and 490,694.90 is: 736,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,110.90 : 922,666.35 = 490,694.90 : x
  2. Step 2: Convert to fraction form
    615,110.90/922,666.35 = 490,694.90/x
  3. Step 3: Cross multiply
    615,110.90x = 922,666.35 × 490,694.90
  4. Step 4: Simplify right side
    615,110.90x = 452,747,672,346.62
  5. Step 5: Solve for x
    x = 452,747,672,346.62/615,110.90
  6. Step 6: Final answer
    x = 736,042.35

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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.