Home / 782,215.80-1,079,457.78-424,519.80

Finding the Fourth Proportional to 782,215.80, 1,079,457.78 and 424,519.80

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Solution

The fourth proportional to 782,215.80, 1,079,457.78 and 424,519.80 is: 585,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,215.80 : 1,079,457.78 = 424,519.80 : x
  2. Step 2: Convert to fraction form
    782,215.80/1,079,457.78 = 424,519.80/x
  3. Step 3: Cross multiply
    782,215.80x = 1,079,457.78 × 424,519.80
  4. Step 4: Simplify right side
    782,215.80x = 458,251,200,874.04
  5. Step 5: Solve for x
    x = 458,251,200,874.04/782,215.80
  6. Step 6: Final answer
    x = 585,837.31

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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.