Home / 694,530.10-1,039,721.55-413,902.90

Finding the Fourth Proportional to 694,530.10, 1,039,721.55 and 413,902.90

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Solution

The fourth proportional to 694,530.10, 1,039,721.55 and 413,902.90 is: 619,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,530.10 : 1,039,721.55 = 413,902.90 : x
  2. Step 2: Convert to fraction form
    694,530.10/1,039,721.55 = 413,902.90/x
  3. Step 3: Cross multiply
    694,530.10x = 1,039,721.55 × 413,902.90
  4. Step 4: Simplify right side
    694,530.10x = 430,343,764,737.50
  5. Step 5: Solve for x
    x = 430,343,764,737.50/694,530.10
  6. Step 6: Final answer
    x = 619,618.59

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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.