Home / 990,514.80-1,485,772.20-242,560.80

Finding the Fourth Proportional to 990,514.80, 1,485,772.20 and 242,560.80

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Solution

The fourth proportional to 990,514.80, 1,485,772.20 and 242,560.80 is: 363,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,514.80 : 1,485,772.20 = 242,560.80 : x
  2. Step 2: Convert to fraction form
    990,514.80/1,485,772.20 = 242,560.80/x
  3. Step 3: Cross multiply
    990,514.80x = 1,485,772.20 × 242,560.80
  4. Step 4: Simplify right side
    990,514.80x = 360,390,093,449.76
  5. Step 5: Solve for x
    x = 360,390,093,449.76/990,514.80
  6. Step 6: Final answer
    x = 363,841.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.