Home / 1,129,755.15-1,694,631.78-288,306.90

Finding the Fourth Proportional to 1,129,755.15, 1,694,631.78 and 288,306.90

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Solution

The fourth proportional to 1,129,755.15, 1,694,631.78 and 288,306.90 is: 432,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,755.15 : 1,694,631.78 = 288,306.90 : x
  2. Step 2: Convert to fraction form
    1,129,755.15/1,694,631.78 = 288,306.90/x
  3. Step 3: Cross multiply
    1,129,755.15x = 1,694,631.78 × 288,306.90
  4. Step 4: Simplify right side
    1,129,755.15x = 488,574,035,133.28
  5. Step 5: Solve for x
    x = 488,574,035,133.28/1,129,755.15
  6. Step 6: Final answer
    x = 432,460.11

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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.