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Finding the Fourth Proportional to 450,752.52, 621,375.78 and 343,135.08

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Solution

The fourth proportional to 450,752.52, 621,375.78 and 343,135.08 is: 473,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,752.52 : 621,375.78 = 343,135.08 : x
  2. Step 2: Convert to fraction form
    450,752.52/621,375.78 = 343,135.08/x
  3. Step 3: Cross multiply
    450,752.52x = 621,375.78 × 343,135.08
  4. Step 4: Simplify right side
    450,752.52x = 213,215,827,980.36
  5. Step 5: Solve for x
    x = 213,215,827,980.36/450,752.52
  6. Step 6: Final answer
    x = 473,021.93

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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.