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Finding the Fourth Proportional to 495,995.13, 684,479.03 and 275,236.95

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Solution

The fourth proportional to 495,995.13, 684,479.03 and 275,236.95 is: 379,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,995.13 : 684,479.03 = 275,236.95 : x
  2. Step 2: Convert to fraction form
    495,995.13/684,479.03 = 275,236.95/x
  3. Step 3: Cross multiply
    495,995.13x = 684,479.03 × 275,236.95
  4. Step 4: Simplify right side
    495,995.13x = 188,393,922,907.92
  5. Step 5: Solve for x
    x = 188,393,922,907.92/495,995.13
  6. Step 6: Final answer
    x = 379,830.18

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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.