Home / 747,869.56-1,120,131.30-347,911

Finding the Fourth Proportional to 747,869.56, 1,120,131.30 and 347,911

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Solution

The fourth proportional to 747,869.56, 1,120,131.30 and 347,911 is: 521,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,869.56 : 1,120,131.30 = 347,911 : x
  2. Step 2: Convert to fraction form
    747,869.56/1,120,131.30 = 347,911/x
  3. Step 3: Cross multiply
    747,869.56x = 1,120,131.30 × 347,911
  4. Step 4: Simplify right side
    747,869.56x = 389,706,000,714.30
  5. Step 5: Solve for x
    x = 389,706,000,714.30/747,869.56
  6. Step 6: Final answer
    x = 521,088.20

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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.