Home / 898,449.88-1,239,863.46-490,555.24

Finding the Fourth Proportional to 898,449.88, 1,239,863.46 and 490,555.24

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Solution

The fourth proportional to 898,449.88, 1,239,863.46 and 490,555.24 is: 676,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,449.88 : 1,239,863.46 = 490,555.24 : x
  2. Step 2: Convert to fraction form
    898,449.88/1,239,863.46 = 490,555.24/x
  3. Step 3: Cross multiply
    898,449.88x = 1,239,863.46 × 490,555.24
  4. Step 4: Simplify right side
    898,449.88x = 608,221,517,187.53
  5. Step 5: Solve for x
    x = 608,221,517,187.53/898,449.88
  6. Step 6: Final answer
    x = 676,967.66

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Double scale
Find fourth proportional to 898,450.88, 1,239,864.84 and 490,556.24
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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.