Home / 898,444.88-1,239,856.56-490,550.24

Finding the Fourth Proportional to 898,444.88, 1,239,856.56 and 490,550.24

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Solution

The fourth proportional to 898,444.88, 1,239,856.56 and 490,550.24 is: 676,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,444.88 : 1,239,856.56 = 490,550.24 : x
  2. Step 2: Convert to fraction form
    898,444.88/1,239,856.56 = 490,550.24/x
  3. Step 3: Cross multiply
    898,444.88x = 1,239,856.56 × 490,550.24
  4. Step 4: Simplify right side
    898,444.88x = 608,211,933,073.58
  5. Step 5: Solve for x
    x = 608,211,933,073.58/898,444.88
  6. Step 6: Final answer
    x = 676,960.76

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Half scale
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Double scale
Find fourth proportional to 898,445.88, 1,239,857.94 and 490,551.24
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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.