Home / 752,513.78-1,038,469.02-450,707.78

Finding the Fourth Proportional to 752,513.78, 1,038,469.02 and 450,707.78

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Solution

The fourth proportional to 752,513.78, 1,038,469.02 and 450,707.78 is: 621,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,513.78 : 1,038,469.02 = 450,707.78 : x
  2. Step 2: Convert to fraction form
    752,513.78/1,038,469.02 = 450,707.78/x
  3. Step 3: Cross multiply
    752,513.78x = 1,038,469.02 × 450,707.78
  4. Step 4: Simplify right side
    752,513.78x = 468,046,066,602.98
  5. Step 5: Solve for x
    x = 468,046,066,602.98/752,513.78
  6. Step 6: Final answer
    x = 621,976.74

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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.