Home / 744,140.30-1,116,469.65-323,717.90

Finding the Fourth Proportional to 744,140.30, 1,116,469.65 and 323,717.90

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Solution

The fourth proportional to 744,140.30, 1,116,469.65 and 323,717.90 is: 485,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,140.30 : 1,116,469.65 = 323,717.90 : x
  2. Step 2: Convert to fraction form
    744,140.30/1,116,469.65 = 323,717.90/x
  3. Step 3: Cross multiply
    744,140.30x = 1,116,469.65 × 323,717.90
  4. Step 4: Simplify right side
    744,140.30x = 361,421,210,511.74
  5. Step 5: Solve for x
    x = 361,421,210,511.74/744,140.30
  6. Step 6: Final answer
    x = 485,689.61

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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.