Home / 752,319.40-1,038,202.02-412,790.20

Finding the Fourth Proportional to 752,319.40, 1,038,202.02 and 412,790.20

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Solution

The fourth proportional to 752,319.40, 1,038,202.02 and 412,790.20 is: 569,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,319.40 : 1,038,202.02 = 412,790.20 : x
  2. Step 2: Convert to fraction form
    752,319.40/1,038,202.02 = 412,790.20/x
  3. Step 3: Cross multiply
    752,319.40x = 1,038,202.02 × 412,790.20
  4. Step 4: Simplify right side
    752,319.40x = 428,559,619,476.20
  5. Step 5: Solve for x
    x = 428,559,619,476.20/752,319.40
  6. Step 6: Final answer
    x = 569,651.16

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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.