Home / 783,281.20-1,081,282.15-493,318.86

Finding the Fourth Proportional to 783,281.20, 1,081,282.15 and 493,318.86

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Solution

The fourth proportional to 783,281.20, 1,081,282.15 and 493,318.86 is: 681,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,281.20 : 1,081,282.15 = 493,318.86 : x
  2. Step 2: Convert to fraction form
    783,281.20/1,081,282.15 = 493,318.86/x
  3. Step 3: Cross multiply
    783,281.20x = 1,081,282.15 × 493,318.86
  4. Step 4: Simplify right side
    783,281.20x = 533,416,877,576.35
  5. Step 5: Solve for x
    x = 533,416,877,576.35/783,281.20
  6. Step 6: Final answer
    x = 681,003.04

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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.