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Finding the Fourth Proportional to 526,779, 726,723.36 and 308,876.45

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Solution

The fourth proportional to 526,779, 726,723.36 and 308,876.45 is: 426,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,779 : 726,723.36 = 308,876.45 : x
  2. Step 2: Convert to fraction form
    526,779/726,723.36 = 308,876.45/x
  3. Step 3: Cross multiply
    526,779x = 726,723.36 × 308,876.45
  4. Step 4: Simplify right side
    526,779x = 224,467,727,935.26
  5. Step 5: Solve for x
    x = 224,467,727,935.26/526,779
  6. Step 6: Final answer
    x = 426,113.66

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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.