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Finding the Fourth Proportional to 615,488.67, 849,516.08 and 360,921.87

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Solution

The fourth proportional to 615,488.67, 849,516.08 and 360,921.87 is: 498,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,488.67 : 849,516.08 = 360,921.87 : x
  2. Step 2: Convert to fraction form
    615,488.67/849,516.08 = 360,921.87/x
  3. Step 3: Cross multiply
    615,488.67x = 849,516.08 × 360,921.87
  4. Step 4: Simplify right side
    615,488.67x = 306,608,930,384.06
  5. Step 5: Solve for x
    x = 306,608,930,384.06/615,488.67
  6. Step 6: Final answer
    x = 498,155.28

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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.