Home / 990,381.72-1,486,124.56-534,963.78

Finding the Fourth Proportional to 990,381.72, 1,486,124.56 and 534,963.78

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Solution

The fourth proportional to 990,381.72, 1,486,124.56 and 534,963.78 is: 802,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,381.72 : 1,486,124.56 = 534,963.78 : x
  2. Step 2: Convert to fraction form
    990,381.72/1,486,124.56 = 534,963.78/x
  3. Step 3: Cross multiply
    990,381.72x = 1,486,124.56 × 534,963.78
  4. Step 4: Simplify right side
    990,381.72x = 795,022,812,168.44
  5. Step 5: Solve for x
    x = 795,022,812,168.44/990,381.72
  6. Step 6: Final answer
    x = 802,743.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.