Home / 898,138.91-1,239,443.27-490,252.47

Finding the Fourth Proportional to 898,138.91, 1,239,443.27 and 490,252.47

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Solution

The fourth proportional to 898,138.91, 1,239,443.27 and 490,252.47 is: 676,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,138.91 : 1,239,443.27 = 490,252.47 : x
  2. Step 2: Convert to fraction form
    898,138.91/1,239,443.27 = 490,252.47/x
  3. Step 3: Cross multiply
    898,138.91x = 1,239,443.27 × 490,252.47
  4. Step 4: Simplify right side
    898,138.91x = 607,640,122,091.12
  5. Step 5: Solve for x
    x = 607,640,122,091.12/898,138.91
  6. Step 6: Final answer
    x = 676,554.73

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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.