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Finding the Fourth Proportional to 435,061.63, 652,566.12 and 258,691.03

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Solution

The fourth proportional to 435,061.63, 652,566.12 and 258,691.03 is: 388,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,061.63 : 652,566.12 = 258,691.03 : x
  2. Step 2: Convert to fraction form
    435,061.63/652,566.12 = 258,691.03/x
  3. Step 3: Cross multiply
    435,061.63x = 652,566.12 × 258,691.03
  4. Step 4: Simplify right side
    435,061.63x = 168,813,001,725.90
  5. Step 5: Solve for x
    x = 168,813,001,725.90/435,061.63
  6. Step 6: Final answer
    x = 388,020.89

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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.