Home / 1,148,338.54-1,721,349.90-722,178.92

Finding the Fourth Proportional to 1,148,338.54, 1,721,349.90 and 722,178.92

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Solution

The fourth proportional to 1,148,338.54, 1,721,349.90 and 722,178.92 is: 1,082,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,338.54 : 1,721,349.90 = 722,178.92 : x
  2. Step 2: Convert to fraction form
    1,148,338.54/1,721,349.90 = 722,178.92/x
  3. Step 3: Cross multiply
    1,148,338.54x = 1,721,349.90 × 722,178.92
  4. Step 4: Simplify right side
    1,148,338.54x = 1,243,122,615,401.42
  5. Step 5: Solve for x
    x = 1,243,122,615,401.42/1,148,338.54
  6. Step 6: Final answer
    x = 1,082,540.18

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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.