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Finding the Fourth Proportional to 634,147.62, 875,123.51 and 347,661.56

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Solution

The fourth proportional to 634,147.62, 875,123.51 and 347,661.56 is: 479,772.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,147.62 : 875,123.51 = 347,661.56 : x
  2. Step 2: Convert to fraction form
    634,147.62/875,123.51 = 347,661.56/x
  3. Step 3: Cross multiply
    634,147.62x = 875,123.51 × 347,661.56
  4. Step 4: Simplify right side
    634,147.62x = 304,246,798,565.35
  5. Step 5: Solve for x
    x = 304,246,798,565.35/634,147.62
  6. Step 6: Final answer
    x = 479,772.83

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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.