Home / 898,305.56-1,239,680.42-490,424.60

Finding the Fourth Proportional to 898,305.56, 1,239,680.42 and 490,424.60

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Solution

The fourth proportional to 898,305.56, 1,239,680.42 and 490,424.60 is: 676,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,305.56 : 1,239,680.42 = 490,424.60 : x
  2. Step 2: Convert to fraction form
    898,305.56/1,239,680.42 = 490,424.60/x
  3. Step 3: Cross multiply
    898,305.56x = 1,239,680.42 × 490,424.60
  4. Step 4: Simplify right side
    898,305.56x = 607,969,774,106.33
  5. Step 5: Solve for x
    x = 607,969,774,106.33/898,305.56
  6. Step 6: Final answer
    x = 676,796.18

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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.