Home / 711,865.89-1,067,466.63-412,432.13

Finding the Fourth Proportional to 711,865.89, 1,067,466.63 and 412,432.13

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Solution

The fourth proportional to 711,865.89, 1,067,466.63 and 412,432.13 is: 618,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,865.89 : 1,067,466.63 = 412,432.13 : x
  2. Step 2: Convert to fraction form
    711,865.89/1,067,466.63 = 412,432.13/x
  3. Step 3: Cross multiply
    711,865.89x = 1,067,466.63 × 412,432.13
  4. Step 4: Simplify right side
    711,865.89x = 440,257,540,130.11
  5. Step 5: Solve for x
    x = 440,257,540,130.11/711,865.89
  6. Step 6: Final answer
    x = 618,455.73

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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.