Home / 819,142.52-1,229,267.04-286,668.20

Finding the Fourth Proportional to 819,142.52, 1,229,267.04 and 286,668.20

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Solution

The fourth proportional to 819,142.52, 1,229,267.04 and 286,668.20 is: 430,195.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,142.52 : 1,229,267.04 = 286,668.20 : x
  2. Step 2: Convert to fraction form
    819,142.52/1,229,267.04 = 286,668.20/x
  3. Step 3: Cross multiply
    819,142.52x = 1,229,267.04 × 286,668.20
  4. Step 4: Simplify right side
    819,142.52x = 352,391,769,676.13
  5. Step 5: Solve for x
    x = 352,391,769,676.13/819,142.52
  6. Step 6: Final answer
    x = 430,195.92

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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.