Home / 908,432.65-1,253,665.46-521,318.89

Finding the Fourth Proportional to 908,432.65, 1,253,665.46 and 521,318.89

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Solution

The fourth proportional to 908,432.65, 1,253,665.46 and 521,318.89 is: 719,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,432.65 : 1,253,665.46 = 521,318.89 : x
  2. Step 2: Convert to fraction form
    908,432.65/1,253,665.46 = 521,318.89/x
  3. Step 3: Cross multiply
    908,432.65x = 1,253,665.46 × 521,318.89
  4. Step 4: Simplify right side
    908,432.65x = 653,559,488,908.92
  5. Step 5: Solve for x
    x = 653,559,488,908.92/908,432.65
  6. Step 6: Final answer
    x = 719,436.37

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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.