Home / 805,498.78-1,111,592.32-442,946.02

Finding the Fourth Proportional to 805,498.78, 1,111,592.32 and 442,946.02

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Solution

The fourth proportional to 805,498.78, 1,111,592.32 and 442,946.02 is: 611,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,498.78 : 1,111,592.32 = 442,946.02 : x
  2. Step 2: Convert to fraction form
    805,498.78/1,111,592.32 = 442,946.02/x
  3. Step 3: Cross multiply
    805,498.78x = 1,111,592.32 × 442,946.02
  4. Step 4: Simplify right side
    805,498.78x = 492,375,394,006.57
  5. Step 5: Solve for x
    x = 492,375,394,006.57/805,498.78
  6. Step 6: Final answer
    x = 611,267.71

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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.