Home / 765,740.59-1,148,610.81-204,760.51

Finding the Fourth Proportional to 765,740.59, 1,148,610.81 and 204,760.51

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Solution

The fourth proportional to 765,740.59, 1,148,610.81 and 204,760.51 is: 307,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,740.59 : 1,148,610.81 = 204,760.51 : x
  2. Step 2: Convert to fraction form
    765,740.59/1,148,610.81 = 204,760.51/x
  3. Step 3: Cross multiply
    765,740.59x = 1,148,610.81 × 204,760.51
  4. Step 4: Simplify right side
    765,740.59x = 235,190,135,247.11
  5. Step 5: Solve for x
    x = 235,190,135,247.11/765,740.59
  6. Step 6: Final answer
    x = 307,140.74

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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.