Home / 782,215.30-1,079,457.09-424,519.30

Finding the Fourth Proportional to 782,215.30, 1,079,457.09 and 424,519.30

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Solution

The fourth proportional to 782,215.30, 1,079,457.09 and 424,519.30 is: 585,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,215.30 : 1,079,457.09 = 424,519.30 : x
  2. Step 2: Convert to fraction form
    782,215.30/1,079,457.09 = 424,519.30/x
  3. Step 3: Cross multiply
    782,215.30x = 1,079,457.09 × 424,519.30
  4. Step 4: Simplify right side
    782,215.30x = 458,250,368,226.84
  5. Step 5: Solve for x
    x = 458,250,368,226.84/782,215.30
  6. Step 6: Final answer
    x = 585,836.62

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Double scale
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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.