Home / 867,642.20-1,301,657.70-335,115.80

Finding the Fourth Proportional to 867,642.20, 1,301,657.70 and 335,115.80

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Solution

The fourth proportional to 867,642.20, 1,301,657.70 and 335,115.80 is: 502,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,642.20 : 1,301,657.70 = 335,115.80 : x
  2. Step 2: Convert to fraction form
    867,642.20/1,301,657.70 = 335,115.80/x
  3. Step 3: Cross multiply
    867,642.20x = 1,301,657.70 × 335,115.80
  4. Step 4: Simplify right side
    867,642.20x = 436,206,061,461.66
  5. Step 5: Solve for x
    x = 436,206,061,461.66/867,642.20
  6. Step 6: Final answer
    x = 502,748.78

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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.