Home / 667,215.40-1,000,823.10-442,877.80

Finding the Fourth Proportional to 667,215.40, 1,000,823.10 and 442,877.80

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Solution

The fourth proportional to 667,215.40, 1,000,823.10 and 442,877.80 is: 664,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,215.40 : 1,000,823.10 = 442,877.80 : x
  2. Step 2: Convert to fraction form
    667,215.40/1,000,823.10 = 442,877.80/x
  3. Step 3: Cross multiply
    667,215.40x = 1,000,823.10 × 442,877.80
  4. Step 4: Simplify right side
    667,215.40x = 443,242,332,717.18
  5. Step 5: Solve for x
    x = 443,242,332,717.18/667,215.40
  6. Step 6: Final answer
    x = 664,316.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.