Home / 420,404.33-580,176.87-236,706.15

Finding the Fourth Proportional to 420,404.33, 580,176.87 and 236,706.15

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Solution

The fourth proportional to 420,404.33, 580,176.87 and 236,706.15 is: 326,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,404.33 : 580,176.87 = 236,706.15 : x
  2. Step 2: Convert to fraction form
    420,404.33/580,176.87 = 236,706.15/x
  3. Step 3: Cross multiply
    420,404.33x = 580,176.87 × 236,706.15
  4. Step 4: Simplify right side
    420,404.33x = 137,331,433,216.75
  5. Step 5: Solve for x
    x = 137,331,433,216.75/420,404.33
  6. Step 6: Final answer
    x = 326,665.13

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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.