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Finding the Fourth Proportional to 489,369.80, 732,672.30 and 475,545.80

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Solution

The fourth proportional to 489,369.80, 732,672.30 and 475,545.80 is: 711,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,369.80 : 732,672.30 = 475,545.80 : x
  2. Step 2: Convert to fraction form
    489,369.80/732,672.30 = 475,545.80/x
  3. Step 3: Cross multiply
    489,369.80x = 732,672.30 × 475,545.80
  4. Step 4: Simplify right side
    489,369.80x = 348,419,235,041.34
  5. Step 5: Solve for x
    x = 348,419,235,041.34/489,369.80
  6. Step 6: Final answer
    x = 711,975.35

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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.