Home / 752,977.65-1,039,103.42-408,806.76

Finding the Fourth Proportional to 752,977.65, 1,039,103.42 and 408,806.76

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Solution

The fourth proportional to 752,977.65, 1,039,103.42 and 408,806.76 is: 564,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,977.65 : 1,039,103.42 = 408,806.76 : x
  2. Step 2: Convert to fraction form
    752,977.65/1,039,103.42 = 408,806.76/x
  3. Step 3: Cross multiply
    752,977.65x = 1,039,103.42 × 408,806.76
  4. Step 4: Simplify right side
    752,977.65x = 424,792,502,435.12
  5. Step 5: Solve for x
    x = 424,792,502,435.12/752,977.65
  6. Step 6: Final answer
    x = 564,150.21

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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.