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Finding the Fourth Proportional to 526,442.80, 726,488.76 and 284,725.66

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Solution

The fourth proportional to 526,442.80, 726,488.76 and 284,725.66 is: 392,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,442.80 : 726,488.76 = 284,725.66 : x
  2. Step 2: Convert to fraction form
    526,442.80/726,488.76 = 284,725.66/x
  3. Step 3: Cross multiply
    526,442.80x = 726,488.76 × 284,725.66
  4. Step 4: Simplify right side
    526,442.80x = 206,849,991,673.58
  5. Step 5: Solve for x
    x = 206,849,991,673.58/526,442.80
  6. Step 6: Final answer
    x = 392,920.16

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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.