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Finding the Fourth Proportional to 526,417.62, 726,437.07 and 300,019.38

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Solution

The fourth proportional to 526,417.62, 726,437.07 and 300,019.38 is: 414,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,417.62 : 726,437.07 = 300,019.38 : x
  2. Step 2: Convert to fraction form
    526,417.62/726,437.07 = 300,019.38/x
  3. Step 3: Cross multiply
    526,417.62x = 726,437.07 × 300,019.38
  4. Step 4: Simplify right side
    526,417.62x = 217,945,199,350.42
  5. Step 5: Solve for x
    x = 217,945,199,350.42/526,417.62
  6. Step 6: Final answer
    x = 414,015.78

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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.