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Finding the Fourth Proportional to 615,732.20, 849,702.24 and 343,804.64

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Solution

The fourth proportional to 615,732.20, 849,702.24 and 343,804.64 is: 474,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,732.20 : 849,702.24 = 343,804.64 : x
  2. Step 2: Convert to fraction form
    615,732.20/849,702.24 = 343,804.64/x
  3. Step 3: Cross multiply
    615,732.20x = 849,702.24 × 343,804.64
  4. Step 4: Simplify right side
    615,732.20x = 292,131,572,730.39
  5. Step 5: Solve for x
    x = 292,131,572,730.39/615,732.20
  6. Step 6: Final answer
    x = 474,445.83

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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.