Home / 801,253.22-1,105,742.34-438,670.89

Finding the Fourth Proportional to 801,253.22, 1,105,742.34 and 438,670.89

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Solution

The fourth proportional to 801,253.22, 1,105,742.34 and 438,670.89 is: 605,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,253.22 : 1,105,742.34 = 438,670.89 : x
  2. Step 2: Convert to fraction form
    801,253.22/1,105,742.34 = 438,670.89/x
  3. Step 3: Cross multiply
    801,253.22x = 1,105,742.34 × 438,670.89
  4. Step 4: Simplify right side
    801,253.22x = 485,056,976,398.48
  5. Step 5: Solve for x
    x = 485,056,976,398.48/801,253.22
  6. Step 6: Final answer
    x = 605,372.89

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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.