Home / 864,069.30-1,295,010.45-330,878.70

Finding the Fourth Proportional to 864,069.30, 1,295,010.45 and 330,878.70

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Solution

The fourth proportional to 864,069.30, 1,295,010.45 and 330,878.70 is: 495,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,069.30 : 1,295,010.45 = 330,878.70 : x
  2. Step 2: Convert to fraction form
    864,069.30/1,295,010.45 = 330,878.70/x
  3. Step 3: Cross multiply
    864,069.30x = 1,295,010.45 × 330,878.70
  4. Step 4: Simplify right side
    864,069.30x = 428,491,374,182.42
  5. Step 5: Solve for x
    x = 428,491,374,182.42/864,069.30
  6. Step 6: Final answer
    x = 495,899.32

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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.