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Finding the Fourth Proportional to 615,214.70, 922,822.05 and 606,920.30

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Solution

The fourth proportional to 615,214.70, 922,822.05 and 606,920.30 is: 910,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,214.70 : 922,822.05 = 606,920.30 : x
  2. Step 2: Convert to fraction form
    615,214.70/922,822.05 = 606,920.30/x
  3. Step 3: Cross multiply
    615,214.70x = 922,822.05 × 606,920.30
  4. Step 4: Simplify right side
    615,214.70x = 560,079,435,432.62
  5. Step 5: Solve for x
    x = 560,079,435,432.62/615,214.70
  6. Step 6: Final answer
    x = 910,380.45

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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.