Home / 809,793.30-1,215,784.35-473,178.90

Finding the Fourth Proportional to 809,793.30, 1,215,784.35 and 473,178.90

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Solution

The fourth proportional to 809,793.30, 1,215,784.35 and 473,178.90 is: 710,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,793.30 : 1,215,784.35 = 473,178.90 : x
  2. Step 2: Convert to fraction form
    809,793.30/1,215,784.35 = 473,178.90/x
  3. Step 3: Cross multiply
    809,793.30x = 1,215,784.35 × 473,178.90
  4. Step 4: Simplify right side
    809,793.30x = 575,283,501,370.22
  5. Step 5: Solve for x
    x = 575,283,501,370.22/809,793.30
  6. Step 6: Final answer
    x = 710,407.83

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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.