Home / 979,782.88-1,352,178.48-550,091.20

Finding the Fourth Proportional to 979,782.88, 1,352,178.48 and 550,091.20

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Solution

The fourth proportional to 979,782.88, 1,352,178.48 and 550,091.20 is: 759,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,782.88 : 1,352,178.48 = 550,091.20 : x
  2. Step 2: Convert to fraction form
    979,782.88/1,352,178.48 = 550,091.20/x
  3. Step 3: Cross multiply
    979,782.88x = 1,352,178.48 × 550,091.20
  4. Step 4: Simplify right side
    979,782.88x = 743,821,482,677.38
  5. Step 5: Solve for x
    x = 743,821,482,677.38/979,782.88
  6. Step 6: Final answer
    x = 759,169.71

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Half scale
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Double scale
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Similar ratio
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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.