Home / 765,462.45-1,056,269.55-443,194.36

Finding the Fourth Proportional to 765,462.45, 1,056,269.55 and 443,194.36

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Solution

The fourth proportional to 765,462.45, 1,056,269.55 and 443,194.36 is: 611,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,462.45 : 1,056,269.55 = 443,194.36 : x
  2. Step 2: Convert to fraction form
    765,462.45/1,056,269.55 = 443,194.36/x
  3. Step 3: Cross multiply
    765,462.45x = 1,056,269.55 × 443,194.36
  4. Step 4: Simplify right side
    765,462.45x = 468,132,707,199.74
  5. Step 5: Solve for x
    x = 468,132,707,199.74/765,462.45
  6. Step 6: Final answer
    x = 611,568.48

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Why These Related Problems?

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