Home / 898,479.40-1,239,892.12-490,579.96

Finding the Fourth Proportional to 898,479.40, 1,239,892.12 and 490,579.96

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Solution

The fourth proportional to 898,479.40, 1,239,892.12 and 490,579.96 is: 676,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,479.40 : 1,239,892.12 = 490,579.96 : x
  2. Step 2: Convert to fraction form
    898,479.40/1,239,892.12 = 490,579.96/x
  3. Step 3: Cross multiply
    898,479.40x = 1,239,892.12 × 490,579.96
  4. Step 4: Simplify right side
    898,479.40x = 608,266,226,633.92
  5. Step 5: Solve for x
    x = 608,266,226,633.92/898,479.40
  6. Step 6: Final answer
    x = 676,995.18

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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.