Home / 990,532.60-1,485,798.90-242,578.60

Finding the Fourth Proportional to 990,532.60, 1,485,798.90 and 242,578.60

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Solution

The fourth proportional to 990,532.60, 1,485,798.90 and 242,578.60 is: 363,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,532.60 : 1,485,798.90 = 242,578.60 : x
  2. Step 2: Convert to fraction form
    990,532.60/1,485,798.90 = 242,578.60/x
  3. Step 3: Cross multiply
    990,532.60x = 1,485,798.90 × 242,578.60
  4. Step 4: Simplify right side
    990,532.60x = 360,423,017,043.54
  5. Step 5: Solve for x
    x = 360,423,017,043.54/990,532.60
  6. Step 6: Final answer
    x = 363,867.90

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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.