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Finding the Fourth Proportional to 526,535.71, 726,388.52 and 308,633.92

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Solution

The fourth proportional to 526,535.71, 726,388.52 and 308,633.92 is: 425,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,535.71 : 726,388.52 = 308,633.92 : x
  2. Step 2: Convert to fraction form
    526,535.71/726,388.52 = 308,633.92/x
  3. Step 3: Cross multiply
    526,535.71x = 726,388.52 × 308,633.92
  4. Step 4: Simplify right side
    526,535.71x = 224,188,133,011.46
  5. Step 5: Solve for x
    x = 224,188,133,011.46/526,535.71
  6. Step 6: Final answer
    x = 425,779.54

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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.