Home / 783,265.60-1,175,287.20-309,966.40

Finding the Fourth Proportional to 783,265.60, 1,175,287.20 and 309,966.40

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Solution

The fourth proportional to 783,265.60, 1,175,287.20 and 309,966.40 is: 465,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,265.60 : 1,175,287.20 = 309,966.40 : x
  2. Step 2: Convert to fraction form
    783,265.60/1,175,287.20 = 309,966.40/x
  3. Step 3: Cross multiply
    783,265.60x = 1,175,287.20 × 309,966.40
  4. Step 4: Simplify right side
    783,265.60x = 364,299,542,350.08
  5. Step 5: Solve for x
    x = 364,299,542,350.08/783,265.60
  6. Step 6: Final answer
    x = 465,103.46

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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.