Home / 500,331.48-690,449.05-270,886.89

Finding the Fourth Proportional to 500,331.48, 690,449.05 and 270,886.89

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Solution

The fourth proportional to 500,331.48, 690,449.05 and 270,886.89 is: 373,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,331.48 : 690,449.05 = 270,886.89 : x
  2. Step 2: Convert to fraction form
    500,331.48/690,449.05 = 270,886.89/x
  3. Step 3: Cross multiply
    500,331.48x = 690,449.05 × 270,886.89
  4. Step 4: Simplify right side
    500,331.48x = 187,033,595,857.96
  5. Step 5: Solve for x
    x = 187,033,595,857.96/500,331.48
  6. Step 6: Final answer
    x = 373,819.36

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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.