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Finding the Fourth Proportional to 543,834.36, 750,490.74 and 302,139.24

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Solution

The fourth proportional to 543,834.36, 750,490.74 and 302,139.24 is: 416,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,834.36 : 750,490.74 = 302,139.24 : x
  2. Step 2: Convert to fraction form
    543,834.36/750,490.74 = 302,139.24/x
  3. Step 3: Cross multiply
    543,834.36x = 750,490.74 × 302,139.24
  4. Step 4: Simplify right side
    543,834.36x = 226,752,701,810.64
  5. Step 5: Solve for x
    x = 226,752,701,810.64/543,834.36
  6. Step 6: Final answer
    x = 416,951.78

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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.