Home / 485,458.43-669,968.15-281,579.00

Finding the Fourth Proportional to 485,458.43, 669,968.15 and 281,579.00

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Solution

The fourth proportional to 485,458.43, 669,968.15 and 281,579.00 is: 388,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,458.43 : 669,968.15 = 281,579.00 : x
  2. Step 2: Convert to fraction form
    485,458.43/669,968.15 = 281,579.00/x
  3. Step 3: Cross multiply
    485,458.43x = 669,968.15 × 281,579.00
  4. Step 4: Simplify right side
    485,458.43x = 188,648,956,951.11
  5. Step 5: Solve for x
    x = 188,648,956,951.11/485,458.43
  6. Step 6: Final answer
    x = 388,599.61

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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.