Home / 771,502.15-1,157,438-321,972.96

Finding the Fourth Proportional to 771,502.15, 1,157,438 and 321,972.96

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Solution

The fourth proportional to 771,502.15, 1,157,438 and 321,972.96 is: 483,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,502.15 : 1,157,438 = 321,972.96 : x
  2. Step 2: Convert to fraction form
    771,502.15/1,157,438 = 321,972.96/x
  3. Step 3: Cross multiply
    771,502.15x = 1,157,438 × 321,972.96
  4. Step 4: Simplify right side
    771,502.15x = 372,663,738,876.48
  5. Step 5: Solve for x
    x = 372,663,738,876.48/771,502.15
  6. Step 6: Final answer
    x = 483,036.55

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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.