Home / 898,436.91-1,239,845.54-490,542.28

Finding the Fourth Proportional to 898,436.91, 1,239,845.54 and 490,542.28

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Solution

The fourth proportional to 898,436.91, 1,239,845.54 and 490,542.28 is: 676,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,436.91 : 1,239,845.54 = 490,542.28 : x
  2. Step 2: Convert to fraction form
    898,436.91/1,239,845.54 = 490,542.28/x
  3. Step 3: Cross multiply
    898,436.91x = 1,239,845.54 × 490,542.28
  4. Step 4: Simplify right side
    898,436.91x = 608,196,652,487.11
  5. Step 5: Solve for x
    x = 608,196,652,487.11/898,436.91
  6. Step 6: Final answer
    x = 676,949.76

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Double scale
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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.