Home / 772,998.40-1,159,497.60-330,630.40

Finding the Fourth Proportional to 772,998.40, 1,159,497.60 and 330,630.40

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Solution

The fourth proportional to 772,998.40, 1,159,497.60 and 330,630.40 is: 495,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,998.40 : 1,159,497.60 = 330,630.40 : x
  2. Step 2: Convert to fraction form
    772,998.40/1,159,497.60 = 330,630.40/x
  3. Step 3: Cross multiply
    772,998.40x = 1,159,497.60 × 330,630.40
  4. Step 4: Simplify right side
    772,998.40x = 383,365,155,287.04
  5. Step 5: Solve for x
    x = 383,365,155,287.04/772,998.40
  6. Step 6: Final answer
    x = 495,945.60

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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.