Home / 702,944.70-1,053,639.45-387,627.90

Finding the Fourth Proportional to 702,944.70, 1,053,639.45 and 387,627.90

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Solution

The fourth proportional to 702,944.70, 1,053,639.45 and 387,627.90 is: 581,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,944.70 : 1,053,639.45 = 387,627.90 : x
  2. Step 2: Convert to fraction form
    702,944.70/1,053,639.45 = 387,627.90/x
  3. Step 3: Cross multiply
    702,944.70x = 1,053,639.45 × 387,627.90
  4. Step 4: Simplify right side
    702,944.70x = 408,420,047,360.66
  5. Step 5: Solve for x
    x = 408,420,047,360.66/702,944.70
  6. Step 6: Final answer
    x = 581,013.05

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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.