Home / 688,619.40-950,139.06-416,680.44

Finding the Fourth Proportional to 688,619.40, 950,139.06 and 416,680.44

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Solution

The fourth proportional to 688,619.40, 950,139.06 and 416,680.44 is: 574,924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,619.40 : 950,139.06 = 416,680.44 : x
  2. Step 2: Convert to fraction form
    688,619.40/950,139.06 = 416,680.44/x
  3. Step 3: Cross multiply
    688,619.40x = 950,139.06 × 416,680.44
  4. Step 4: Simplify right side
    688,619.40x = 395,904,361,581.99
  5. Step 5: Solve for x
    x = 395,904,361,581.99/688,619.40
  6. Step 6: Final answer
    x = 574,924.79

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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.