Home / 439,748.10-659,622.15-437,123.70

Finding the Fourth Proportional to 439,748.10, 659,622.15 and 437,123.70

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Solution

The fourth proportional to 439,748.10, 659,622.15 and 437,123.70 is: 655,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,748.10 : 659,622.15 = 437,123.70 : x
  2. Step 2: Convert to fraction form
    439,748.10/659,622.15 = 437,123.70/x
  3. Step 3: Cross multiply
    439,748.10x = 659,622.15 × 437,123.70
  4. Step 4: Simplify right side
    439,748.10x = 288,336,474,809.96
  5. Step 5: Solve for x
    x = 288,336,474,809.96/439,748.10
  6. Step 6: Final answer
    x = 655,685.55

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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.