Home / 898,278.81-1,239,606.23-490,388.73

Finding the Fourth Proportional to 898,278.81, 1,239,606.23 and 490,388.73

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Solution

The fourth proportional to 898,278.81, 1,239,606.23 and 490,388.73 is: 676,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,278.81 : 1,239,606.23 = 490,388.73 : x
  2. Step 2: Convert to fraction form
    898,278.81/1,239,606.23 = 490,388.73/x
  3. Step 3: Cross multiply
    898,278.81x = 1,239,606.23 × 490,388.73
  4. Step 4: Simplify right side
    898,278.81x = 607,888,922,377.84
  5. Step 5: Solve for x
    x = 607,888,922,377.84/898,278.81
  6. Step 6: Final answer
    x = 676,726.33

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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.