Home / 898,470.40-1,239,879.68-490,570.94

Finding the Fourth Proportional to 898,470.40, 1,239,879.68 and 490,570.94

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Solution

The fourth proportional to 898,470.40, 1,239,879.68 and 490,570.94 is: 676,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,470.40 : 1,239,879.68 = 490,570.94 : x
  2. Step 2: Convert to fraction form
    898,470.40/1,239,879.68 = 490,570.94/x
  3. Step 3: Cross multiply
    898,470.40x = 1,239,879.68 × 490,570.94
  4. Step 4: Simplify right side
    898,470.40x = 608,248,940,104.50
  5. Step 5: Solve for x
    x = 608,248,940,104.50/898,470.40
  6. Step 6: Final answer
    x = 676,982.73

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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.