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Finding the Fourth Proportional to 663,371.64, 915,583.54 and 462,051

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Solution

The fourth proportional to 663,371.64, 915,583.54 and 462,051 is: 637,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,371.64 : 915,583.54 = 462,051 : x
  2. Step 2: Convert to fraction form
    663,371.64/915,583.54 = 462,051/x
  3. Step 3: Cross multiply
    663,371.64x = 915,583.54 × 462,051
  4. Step 4: Simplify right side
    663,371.64x = 423,046,290,240.54
  5. Step 5: Solve for x
    x = 423,046,290,240.54/663,371.64
  6. Step 6: Final answer
    x = 637,721.40

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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.