Home / 898,295.25-1,239,666.21-490,414.28

Finding the Fourth Proportional to 898,295.25, 1,239,666.21 and 490,414.28

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Solution

The fourth proportional to 898,295.25, 1,239,666.21 and 490,414.28 is: 676,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,295.25 : 1,239,666.21 = 490,414.28 : x
  2. Step 2: Convert to fraction form
    898,295.25/1,239,666.21 = 490,414.28/x
  3. Step 3: Cross multiply
    898,295.25x = 1,239,666.21 × 490,414.28
  4. Step 4: Simplify right side
    898,295.25x = 607,950,017,132.44
  5. Step 5: Solve for x
    x = 607,950,017,132.44/898,295.25
  6. Step 6: Final answer
    x = 676,781.96

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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.