Home / 729,965.70-1,094,430.15-280,512.90

Finding the Fourth Proportional to 729,965.70, 1,094,430.15 and 280,512.90

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Solution

The fourth proportional to 729,965.70, 1,094,430.15 and 280,512.90 is: 420,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,965.70 : 1,094,430.15 = 280,512.90 : x
  2. Step 2: Convert to fraction form
    729,965.70/1,094,430.15 = 280,512.90/x
  3. Step 3: Cross multiply
    729,965.70x = 1,094,430.15 × 280,512.90
  4. Step 4: Simplify right side
    729,965.70x = 307,001,775,223.94
  5. Step 5: Solve for x
    x = 307,001,775,223.94/729,965.70
  6. Step 6: Final answer
    x = 420,570.14

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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.