Home / 774,681.60-1,162,022.40-325,909.20

Finding the Fourth Proportional to 774,681.60, 1,162,022.40 and 325,909.20

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Solution

The fourth proportional to 774,681.60, 1,162,022.40 and 325,909.20 is: 488,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,681.60 : 1,162,022.40 = 325,909.20 : x
  2. Step 2: Convert to fraction form
    774,681.60/1,162,022.40 = 325,909.20/x
  3. Step 3: Cross multiply
    774,681.60x = 1,162,022.40 × 325,909.20
  4. Step 4: Simplify right side
    774,681.60x = 378,713,790,766.08
  5. Step 5: Solve for x
    x = 378,713,790,766.08/774,681.60
  6. Step 6: Final answer
    x = 488,863.80

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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.