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Finding the Fourth Proportional to 424,545.80, 636,818.70 and 282,828.20

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Solution

The fourth proportional to 424,545.80, 636,818.70 and 282,828.20 is: 424,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,545.80 : 636,818.70 = 282,828.20 : x
  2. Step 2: Convert to fraction form
    424,545.80/636,818.70 = 282,828.20/x
  3. Step 3: Cross multiply
    424,545.80x = 636,818.70 × 282,828.20
  4. Step 4: Simplify right side
    424,545.80x = 180,110,286,647.34
  5. Step 5: Solve for x
    x = 180,110,286,647.34/424,545.80
  6. Step 6: Final answer
    x = 424,242.30

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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.