Home / 908,436.32-1,253,670.52-521,322.56

Finding the Fourth Proportional to 908,436.32, 1,253,670.52 and 521,322.56

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Solution

The fourth proportional to 908,436.32, 1,253,670.52 and 521,322.56 is: 719,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,436.32 : 1,253,670.52 = 521,322.56 : x
  2. Step 2: Convert to fraction form
    908,436.32/1,253,670.52 = 521,322.56/x
  3. Step 3: Cross multiply
    908,436.32x = 1,253,670.52 × 521,322.56
  4. Step 4: Simplify right side
    908,436.32x = 653,566,724,882.93
  5. Step 5: Solve for x
    x = 653,566,724,882.93/908,436.32
  6. Step 6: Final answer
    x = 719,441.43

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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.