Home / 811,422.93-1,119,491.70-467,251.47

Finding the Fourth Proportional to 811,422.93, 1,119,491.70 and 467,251.47

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Solution

The fourth proportional to 811,422.93, 1,119,491.70 and 467,251.47 is: 644,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,422.93 : 1,119,491.70 = 467,251.47 : x
  2. Step 2: Convert to fraction form
    811,422.93/1,119,491.70 = 467,251.47/x
  3. Step 3: Cross multiply
    811,422.93x = 1,119,491.70 × 467,251.47
  4. Step 4: Simplify right side
    811,422.93x = 523,084,143,353.90
  5. Step 5: Solve for x
    x = 523,084,143,353.90/811,422.93
  6. Step 6: Final answer
    x = 644,650.43

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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.