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Finding the Fourth Proportional to 550,363.80, 825,545.70 and 461,790.30

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Solution

The fourth proportional to 550,363.80, 825,545.70 and 461,790.30 is: 692,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,363.80 : 825,545.70 = 461,790.30 : x
  2. Step 2: Convert to fraction form
    550,363.80/825,545.70 = 461,790.30/x
  3. Step 3: Cross multiply
    550,363.80x = 825,545.70 × 461,790.30
  4. Step 4: Simplify right side
    550,363.80x = 381,228,996,466.71
  5. Step 5: Solve for x
    x = 381,228,996,466.71/550,363.80
  6. Step 6: Final answer
    x = 692,685.45

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Similar ratio
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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.