Home / 696,835.20-1,045,908.90-431,114.70

Finding the Fourth Proportional to 696,835.20, 1,045,908.90 and 431,114.70

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Solution

The fourth proportional to 696,835.20, 1,045,908.90 and 431,114.70 is: 647,077.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,835.20 : 1,045,908.90 = 431,114.70 : x
  2. Step 2: Convert to fraction form
    696,835.20/1,045,908.90 = 431,114.70/x
  3. Step 3: Cross multiply
    696,835.20x = 1,045,908.90 × 431,114.70
  4. Step 4: Simplify right side
    696,835.20x = 450,906,701,650.83
  5. Step 5: Solve for x
    x = 450,906,701,650.83/696,835.20
  6. Step 6: Final answer
    x = 647,077.96

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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.