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Finding the Fourth Proportional to 615,505.52, 849,394.38 and 357,445.92

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Solution

The fourth proportional to 615,505.52, 849,394.38 and 357,445.92 is: 493,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,505.52 : 849,394.38 = 357,445.92 : x
  2. Step 2: Convert to fraction form
    615,505.52/849,394.38 = 357,445.92/x
  3. Step 3: Cross multiply
    615,505.52x = 849,394.38 × 357,445.92
  4. Step 4: Simplify right side
    615,505.52x = 303,612,555,601.93
  5. Step 5: Solve for x
    x = 303,612,555,601.93/615,505.52
  6. Step 6: Final answer
    x = 493,273.49

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1.5x scale

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.