Home / 828,294.38-1,143,048.16-465,721.37

Finding the Fourth Proportional to 828,294.38, 1,143,048.16 and 465,721.37

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Solution

The fourth proportional to 828,294.38, 1,143,048.16 and 465,721.37 is: 642,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,294.38 : 1,143,048.16 = 465,721.37 : x
  2. Step 2: Convert to fraction form
    828,294.38/1,143,048.16 = 465,721.37/x
  3. Step 3: Cross multiply
    828,294.38x = 1,143,048.16 × 465,721.37
  4. Step 4: Simplify right side
    828,294.38x = 532,341,949,335.94
  5. Step 5: Solve for x
    x = 532,341,949,335.94/828,294.38
  6. Step 6: Final answer
    x = 642,696.56

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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.