Home / 671,649.12-1,006,657.20-316,247.04

Finding the Fourth Proportional to 671,649.12, 1,006,657.20 and 316,247.04

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Solution

The fourth proportional to 671,649.12, 1,006,657.20 and 316,247.04 is: 473,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,649.12 : 1,006,657.20 = 316,247.04 : x
  2. Step 2: Convert to fraction form
    671,649.12/1,006,657.20 = 316,247.04/x
  3. Step 3: Cross multiply
    671,649.12x = 1,006,657.20 × 316,247.04
  4. Step 4: Simplify right side
    671,649.12x = 318,352,359,794.69
  5. Step 5: Solve for x
    x = 318,352,359,794.69/671,649.12
  6. Step 6: Final answer
    x = 473,986.12

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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.