Home / 898,298.88-1,239,671.21-490,417.92

Finding the Fourth Proportional to 898,298.88, 1,239,671.21 and 490,417.92

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Solution

The fourth proportional to 898,298.88, 1,239,671.21 and 490,417.92 is: 676,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,298.88 : 1,239,671.21 = 490,417.92 : x
  2. Step 2: Convert to fraction form
    898,298.88/1,239,671.21 = 490,417.92/x
  3. Step 3: Cross multiply
    898,298.88x = 1,239,671.21 × 490,417.92
  4. Step 4: Simplify right side
    898,298.88x = 607,956,976,292.08
  5. Step 5: Solve for x
    x = 607,956,976,292.08/898,298.88
  6. Step 6: Final answer
    x = 676,786.97

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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.