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Finding the Fourth Proportional to 615,487.92, 849,515.06 and 360,921.12

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Solution

The fourth proportional to 615,487.92, 849,515.06 and 360,921.12 is: 498,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,487.92 : 849,515.06 = 360,921.12 : x
  2. Step 2: Convert to fraction form
    615,487.92/849,515.06 = 360,921.12/x
  3. Step 3: Cross multiply
    615,487.92x = 849,515.06 × 360,921.12
  4. Step 4: Simplify right side
    615,487.92x = 306,607,925,107.46
  5. Step 5: Solve for x
    x = 306,607,925,107.46/615,487.92
  6. Step 6: Final answer
    x = 498,154.25

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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.