Home / 689,738.97-1,034,634.48-310,587.03

Finding the Fourth Proportional to 689,738.97, 1,034,634.48 and 310,587.03

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Solution

The fourth proportional to 689,738.97, 1,034,634.48 and 310,587.03 is: 465,892.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,738.97 : 1,034,634.48 = 310,587.03 : x
  2. Step 2: Convert to fraction form
    689,738.97/1,034,634.48 = 310,587.03/x
  3. Step 3: Cross multiply
    689,738.97x = 1,034,634.48 × 310,587.03
  4. Step 4: Simplify right side
    689,738.97x = 321,344,050,278.79
  5. Step 5: Solve for x
    x = 321,344,050,278.79/689,738.97
  6. Step 6: Final answer
    x = 465,892.26

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1.5x scale

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.