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Finding the Fourth Proportional to 653,491.56, 901,712.58 and 408,447.42

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Solution

The fourth proportional to 653,491.56, 901,712.58 and 408,447.42 is: 563,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,491.56 : 901,712.58 = 408,447.42 : x
  2. Step 2: Convert to fraction form
    653,491.56/901,712.58 = 408,447.42/x
  3. Step 3: Cross multiply
    653,491.56x = 901,712.58 × 408,447.42
  4. Step 4: Simplify right side
    653,491.56x = 368,302,176,882.54
  5. Step 5: Solve for x
    x = 368,302,176,882.54/653,491.56
  6. Step 6: Final answer
    x = 563,591.33

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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.