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Finding the Fourth Proportional to 704,725.38, 972,521.64 and 382,435.47

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Solution

The fourth proportional to 704,725.38, 972,521.64 and 382,435.47 is: 527,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,725.38 : 972,521.64 = 382,435.47 : x
  2. Step 2: Convert to fraction form
    704,725.38/972,521.64 = 382,435.47/x
  3. Step 3: Cross multiply
    704,725.38x = 972,521.64 × 382,435.47
  4. Step 4: Simplify right side
    704,725.38x = 371,926,770,478.57
  5. Step 5: Solve for x
    x = 371,926,770,478.57/704,725.38
  6. Step 6: Final answer
    x = 527,761.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.