Home / 743,218.83-1,114,851.39-353,639.88

Finding the Fourth Proportional to 743,218.83, 1,114,851.39 and 353,639.88

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Solution

The fourth proportional to 743,218.83, 1,114,851.39 and 353,639.88 is: 530,470.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,218.83 : 1,114,851.39 = 353,639.88 : x
  2. Step 2: Convert to fraction form
    743,218.83/1,114,851.39 = 353,639.88/x
  3. Step 3: Cross multiply
    743,218.83x = 1,114,851.39 × 353,639.88
  4. Step 4: Simplify right side
    743,218.83x = 394,255,911,777.43
  5. Step 5: Solve for x
    x = 394,255,911,777.43/743,218.83
  6. Step 6: Final answer
    x = 530,470.83

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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.