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Finding the Fourth Proportional to 489,114.40, 732,505.20 and 489,114.40

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Solution

The fourth proportional to 489,114.40, 732,505.20 and 489,114.40 is: 732,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,114.40 : 732,505.20 = 489,114.40 : x
  2. Step 2: Convert to fraction form
    489,114.40/732,505.20 = 489,114.40/x
  3. Step 3: Cross multiply
    489,114.40x = 732,505.20 × 489,114.40
  4. Step 4: Simplify right side
    489,114.40x = 358,278,841,394.88
  5. Step 5: Solve for x
    x = 358,278,841,394.88/489,114.40
  6. Step 6: Final answer
    x = 732,505.20

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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.