Home / 886,123.50-1,222,689.11-498,878.70

Finding the Fourth Proportional to 886,123.50, 1,222,689.11 and 498,878.70

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Solution

The fourth proportional to 886,123.50, 1,222,689.11 and 498,878.70 is: 688,361.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,123.50 : 1,222,689.11 = 498,878.70 : x
  2. Step 2: Convert to fraction form
    886,123.50/1,222,689.11 = 498,878.70/x
  3. Step 3: Cross multiply
    886,123.50x = 1,222,689.11 × 498,878.70
  4. Step 4: Simplify right side
    886,123.50x = 609,973,553,700.96
  5. Step 5: Solve for x
    x = 609,973,553,700.96/886,123.50
  6. Step 6: Final answer
    x = 688,361.78

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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.