Home / 714,522.20-1,072,110.72-309,838.52

Finding the Fourth Proportional to 714,522.20, 1,072,110.72 and 309,838.52

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Solution

The fourth proportional to 714,522.20, 1,072,110.72 and 309,838.52 is: 464,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,522.20 : 1,072,110.72 = 309,838.52 : x
  2. Step 2: Convert to fraction form
    714,522.20/1,072,110.72 = 309,838.52/x
  3. Step 3: Cross multiply
    714,522.20x = 1,072,110.72 × 309,838.52
  4. Step 4: Simplify right side
    714,522.20x = 332,181,198,760.93
  5. Step 5: Solve for x
    x = 332,181,198,760.93/714,522.20
  6. Step 6: Final answer
    x = 464,899.76

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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.