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Finding the Fourth Proportional to 542,007.39, 747,950.34 and 312,574.35

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Solution

The fourth proportional to 542,007.39, 747,950.34 and 312,574.35 is: 431,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,007.39 : 747,950.34 = 312,574.35 : x
  2. Step 2: Convert to fraction form
    542,007.39/747,950.34 = 312,574.35/x
  3. Step 3: Cross multiply
    542,007.39x = 747,950.34 × 312,574.35
  4. Step 4: Simplify right side
    542,007.39x = 233,790,091,357.78
  5. Step 5: Solve for x
    x = 233,790,091,357.78/542,007.39
  6. Step 6: Final answer
    x = 431,341.15

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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.