Home / 785,356.28-1,083,763.22-479,943.62

Finding the Fourth Proportional to 785,356.28, 1,083,763.22 and 479,943.62

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Solution

The fourth proportional to 785,356.28, 1,083,763.22 and 479,943.62 is: 662,304.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,356.28 : 1,083,763.22 = 479,943.62 : x
  2. Step 2: Convert to fraction form
    785,356.28/1,083,763.22 = 479,943.62/x
  3. Step 3: Cross multiply
    785,356.28x = 1,083,763.22 × 479,943.62
  4. Step 4: Simplify right side
    785,356.28x = 520,145,243,029.66
  5. Step 5: Solve for x
    x = 520,145,243,029.66/785,356.28
  6. Step 6: Final answer
    x = 662,304.81

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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.