Home / 502,500.23-693,559.68-309,074.18

Finding the Fourth Proportional to 502,500.23, 693,559.68 and 309,074.18

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Solution

The fourth proportional to 502,500.23, 693,559.68 and 309,074.18 is: 426,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,500.23 : 693,559.68 = 309,074.18 : x
  2. Step 2: Convert to fraction form
    502,500.23/693,559.68 = 309,074.18/x
  3. Step 3: Cross multiply
    502,500.23x = 693,559.68 × 309,074.18
  4. Step 4: Simplify right side
    502,500.23x = 214,361,385,909.26
  5. Step 5: Solve for x
    x = 214,361,385,909.26/502,500.23
  6. Step 6: Final answer
    x = 426,589.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.