Home / 448,423.22-671,885.87-315,064.73

Finding the Fourth Proportional to 448,423.22, 671,885.87 and 315,064.73

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Solution

The fourth proportional to 448,423.22, 671,885.87 and 315,064.73 is: 472,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,423.22 : 671,885.87 = 315,064.73 : x
  2. Step 2: Convert to fraction form
    448,423.22/671,885.87 = 315,064.73/x
  3. Step 3: Cross multiply
    448,423.22x = 671,885.87 × 315,064.73
  4. Step 4: Simplify right side
    448,423.22x = 211,687,535,287.61
  5. Step 5: Solve for x
    x = 211,687,535,287.61/448,423.22
  6. Step 6: Final answer
    x = 472,070.87

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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.