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Finding the Fourth Proportional to 348,545.80, 522,818.70 and 329,192.20

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Solution

The fourth proportional to 348,545.80, 522,818.70 and 329,192.20 is: 493,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,545.80 : 522,818.70 = 329,192.20 : x
  2. Step 2: Convert to fraction form
    348,545.80/522,818.70 = 329,192.20/x
  3. Step 3: Cross multiply
    348,545.80x = 522,818.70 × 329,192.20
  4. Step 4: Simplify right side
    348,545.80x = 172,107,838,054.14
  5. Step 5: Solve for x
    x = 172,107,838,054.14/348,545.80
  6. Step 6: Final answer
    x = 493,788.30

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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.