Home / 898,418.28-1,239,808.74-490,516.62

Finding the Fourth Proportional to 898,418.28, 1,239,808.74 and 490,516.62

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Solution

The fourth proportional to 898,418.28, 1,239,808.74 and 490,516.62 is: 676,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,418.28 : 1,239,808.74 = 490,516.62 : x
  2. Step 2: Convert to fraction form
    898,418.28/1,239,808.74 = 490,516.62/x
  3. Step 3: Cross multiply
    898,418.28x = 1,239,808.74 × 490,516.62
  4. Step 4: Simplify right side
    898,418.28x = 608,146,792,591.26
  5. Step 5: Solve for x
    x = 608,146,792,591.26/898,418.28
  6. Step 6: Final answer
    x = 676,908.30

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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.