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Finding the Fourth Proportional to 508,098.04, 701,184.94 and 278,640.78

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Solution

The fourth proportional to 508,098.04, 701,184.94 and 278,640.78 is: 384,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,098.04 : 701,184.94 = 278,640.78 : x
  2. Step 2: Convert to fraction form
    508,098.04/701,184.94 = 278,640.78/x
  3. Step 3: Cross multiply
    508,098.04x = 701,184.94 × 278,640.78
  4. Step 4: Simplify right side
    508,098.04x = 195,378,718,605.85
  5. Step 5: Solve for x
    x = 195,378,718,605.85/508,098.04
  6. Step 6: Final answer
    x = 384,529.57

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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.