Home / 921,604.72-1,271,820.28-513,732.48

Finding the Fourth Proportional to 921,604.72, 1,271,820.28 and 513,732.48

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Solution

The fourth proportional to 921,604.72, 1,271,820.28 and 513,732.48 is: 708,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,604.72 : 1,271,820.28 = 513,732.48 : x
  2. Step 2: Convert to fraction form
    921,604.72/1,271,820.28 = 513,732.48/x
  3. Step 3: Cross multiply
    921,604.72x = 1,271,820.28 × 513,732.48
  4. Step 4: Simplify right side
    921,604.72x = 653,375,386,558.69
  5. Step 5: Solve for x
    x = 653,375,386,558.69/921,604.72
  6. Step 6: Final answer
    x = 708,954.04

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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.