Home / 1,131,192.95-1,696,587.12-321,631.16

Finding the Fourth Proportional to 1,131,192.95, 1,696,587.12 and 321,631.16

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Solution

The fourth proportional to 1,131,192.95, 1,696,587.12 and 321,631.16 is: 482,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,192.95 : 1,696,587.12 = 321,631.16 : x
  2. Step 2: Convert to fraction form
    1,131,192.95/1,696,587.12 = 321,631.16/x
  3. Step 3: Cross multiply
    1,131,192.95x = 1,696,587.12 × 321,631.16
  4. Step 4: Simplify right side
    1,131,192.95x = 545,675,274,963.72
  5. Step 5: Solve for x
    x = 545,675,274,963.72/1,131,192.95
  6. Step 6: Final answer
    x = 482,389.21

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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.