Home / 829,365.72-1,243,909.61-230,387.42

Finding the Fourth Proportional to 829,365.72, 1,243,909.61 and 230,387.42

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Solution

The fourth proportional to 829,365.72, 1,243,909.61 and 230,387.42 is: 345,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,365.72 : 1,243,909.61 = 230,387.42 : x
  2. Step 2: Convert to fraction form
    829,365.72/1,243,909.61 = 230,387.42/x
  3. Step 3: Cross multiply
    829,365.72x = 1,243,909.61 × 230,387.42
  4. Step 4: Simplify right side
    829,365.72x = 286,581,128,582.90
  5. Step 5: Solve for x
    x = 286,581,128,582.90/829,365.72
  6. Step 6: Final answer
    x = 345,542.53

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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.