Home / 1,272,423.46-1,755,984.81-699,487.78

Finding the Fourth Proportional to 1,272,423.46, 1,755,984.81 and 699,487.78

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Solution

The fourth proportional to 1,272,423.46, 1,755,984.81 and 699,487.78 is: 965,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,423.46 : 1,755,984.81 = 699,487.78 : x
  2. Step 2: Convert to fraction form
    1,272,423.46/1,755,984.81 = 699,487.78/x
  3. Step 3: Cross multiply
    1,272,423.46x = 1,755,984.81 × 699,487.78
  4. Step 4: Simplify right side
    1,272,423.46x = 1,228,289,916,460.62
  5. Step 5: Solve for x
    x = 1,228,289,916,460.62/1,272,423.46
  6. Step 6: Final answer
    x = 965,315.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.