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Finding the Fourth Proportional to 526,467.87, 726,567.01 and 311,726.34

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Solution

The fourth proportional to 526,467.87, 726,567.01 and 311,726.34 is: 430,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,467.87 : 726,567.01 = 311,726.34 : x
  2. Step 2: Convert to fraction form
    526,467.87/726,567.01 = 311,726.34/x
  3. Step 3: Cross multiply
    526,467.87x = 726,567.01 × 311,726.34
  4. Step 4: Simplify right side
    526,467.87x = 226,490,074,012.73
  5. Step 5: Solve for x
    x = 226,490,074,012.73/526,467.87
  6. Step 6: Final answer
    x = 430,206.83

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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.