Home / 856,834.29-1,182,423.98-469,671.20

Finding the Fourth Proportional to 856,834.29, 1,182,423.98 and 469,671.20

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Solution

The fourth proportional to 856,834.29, 1,182,423.98 and 469,671.20 is: 648,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,834.29 : 1,182,423.98 = 469,671.20 : x
  2. Step 2: Convert to fraction form
    856,834.29/1,182,423.98 = 469,671.20/x
  3. Step 3: Cross multiply
    856,834.29x = 1,182,423.98 × 469,671.20
  4. Step 4: Simplify right side
    856,834.29x = 555,350,481,334.90
  5. Step 5: Solve for x
    x = 555,350,481,334.90/856,834.29
  6. Step 6: Final answer
    x = 648,142.22

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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.