Home / 752,763.77-1,038,561-480,990.75

Finding the Fourth Proportional to 752,763.77, 1,038,561 and 480,990.75

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Solution

The fourth proportional to 752,763.77, 1,038,561 and 480,990.75 is: 663,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,763.77 : 1,038,561 = 480,990.75 : x
  2. Step 2: Convert to fraction form
    752,763.77/1,038,561 = 480,990.75/x
  3. Step 3: Cross multiply
    752,763.77x = 1,038,561 × 480,990.75
  4. Step 4: Simplify right side
    752,763.77x = 499,538,234,310.75
  5. Step 5: Solve for x
    x = 499,538,234,310.75/752,763.77
  6. Step 6: Final answer
    x = 663,605.57

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Double scale
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1.5x scale

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.