Home / 827,768.20-1,142,302.62-488,345.80

Finding the Fourth Proportional to 827,768.20, 1,142,302.62 and 488,345.80

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Solution

The fourth proportional to 827,768.20, 1,142,302.62 and 488,345.80 is: 673,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,768.20 : 1,142,302.62 = 488,345.80 : x
  2. Step 2: Convert to fraction form
    827,768.20/1,142,302.62 = 488,345.80/x
  3. Step 3: Cross multiply
    827,768.20x = 1,142,302.62 × 488,345.80
  4. Step 4: Simplify right side
    827,768.20x = 557,838,686,806.00
  5. Step 5: Solve for x
    x = 557,838,686,806.00/827,768.20
  6. Step 6: Final answer
    x = 673,906.88

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1.5x scale

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.