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Finding the Fourth Proportional to 542,421.87, 813,639.48 and 373,896.86

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Solution

The fourth proportional to 542,421.87, 813,639.48 and 373,896.86 is: 560,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,421.87 : 813,639.48 = 373,896.86 : x
  2. Step 2: Convert to fraction form
    542,421.87/813,639.48 = 373,896.86/x
  3. Step 3: Cross multiply
    542,421.87x = 813,639.48 × 373,896.86
  4. Step 4: Simplify right side
    542,421.87x = 304,217,247,953.61
  5. Step 5: Solve for x
    x = 304,217,247,953.61/542,421.87
  6. Step 6: Final answer
    x = 560,849.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.