Home / 815,356.13-1,223,251.27-282,876.30

Finding the Fourth Proportional to 815,356.13, 1,223,251.27 and 282,876.30

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Solution

The fourth proportional to 815,356.13, 1,223,251.27 and 282,876.30 is: 424,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,356.13 : 1,223,251.27 = 282,876.30 : x
  2. Step 2: Convert to fraction form
    815,356.13/1,223,251.27 = 282,876.30/x
  3. Step 3: Cross multiply
    815,356.13x = 1,223,251.27 × 282,876.30
  4. Step 4: Simplify right side
    815,356.13x = 346,028,792,520.71
  5. Step 5: Solve for x
    x = 346,028,792,520.71/815,356.13
  6. Step 6: Final answer
    x = 424,389.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.