Home / 752,139.57-1,037,946.56-407,974.64

Finding the Fourth Proportional to 752,139.57, 1,037,946.56 and 407,974.64

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Solution

The fourth proportional to 752,139.57, 1,037,946.56 and 407,974.64 is: 563,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,139.57 : 1,037,946.56 = 407,974.64 : x
  2. Step 2: Convert to fraction form
    752,139.57/1,037,946.56 = 407,974.64/x
  3. Step 3: Cross multiply
    752,139.57x = 1,037,946.56 × 407,974.64
  4. Step 4: Simplify right side
    752,139.57x = 423,455,866,925.63
  5. Step 5: Solve for x
    x = 423,455,866,925.63/752,139.57
  6. Step 6: Final answer
    x = 563,001.71

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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.