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Finding the Fourth Proportional to 520,240.84, 717,834.88 and 329,119.72

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Solution

The fourth proportional to 520,240.84, 717,834.88 and 329,119.72 is: 454,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,240.84 : 717,834.88 = 329,119.72 : x
  2. Step 2: Convert to fraction form
    520,240.84/717,834.88 = 329,119.72/x
  3. Step 3: Cross multiply
    520,240.84x = 717,834.88 × 329,119.72
  4. Step 4: Simplify right side
    520,240.84x = 236,253,614,711.83
  5. Step 5: Solve for x
    x = 236,253,614,711.83/520,240.84
  6. Step 6: Final answer
    x = 454,123.55

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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.