Home / 949,107.60-1,309,768.50-519,387.90

Finding the Fourth Proportional to 949,107.60, 1,309,768.50 and 519,387.90

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Solution

The fourth proportional to 949,107.60, 1,309,768.50 and 519,387.90 is: 716,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,107.60 : 1,309,768.50 = 519,387.90 : x
  2. Step 2: Convert to fraction form
    949,107.60/1,309,768.50 = 519,387.90/x
  3. Step 3: Cross multiply
    949,107.60x = 1,309,768.50 × 519,387.90
  4. Step 4: Simplify right side
    949,107.60x = 680,277,910,701.15
  5. Step 5: Solve for x
    x = 680,277,910,701.15/949,107.60
  6. Step 6: Final answer
    x = 716,755.31

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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.