Home / 782,270.85-1,079,348.76-442,739.10

Finding the Fourth Proportional to 782,270.85, 1,079,348.76 and 442,739.10

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Solution

The fourth proportional to 782,270.85, 1,079,348.76 and 442,739.10 is: 610,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,270.85 : 1,079,348.76 = 442,739.10 : x
  2. Step 2: Convert to fraction form
    782,270.85/1,079,348.76 = 442,739.10/x
  3. Step 3: Cross multiply
    782,270.85x = 1,079,348.76 × 442,739.10
  4. Step 4: Simplify right side
    782,270.85x = 477,869,898,588.52
  5. Step 5: Solve for x
    x = 477,869,898,588.52/782,270.85
  6. Step 6: Final answer
    x = 610,875.25

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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.