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Finding the Fourth Proportional to 621,805.50, 932,708.52 and 222,422.40

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Solution

The fourth proportional to 621,805.50, 932,708.52 and 222,422.40 is: 333,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,805.50 : 932,708.52 = 222,422.40 : x
  2. Step 2: Convert to fraction form
    621,805.50/932,708.52 = 222,422.40/x
  3. Step 3: Cross multiply
    621,805.50x = 932,708.52 × 222,422.40
  4. Step 4: Simplify right side
    621,805.50x = 207,455,267,518.85
  5. Step 5: Solve for x
    x = 207,455,267,518.85/621,805.50
  6. Step 6: Final answer
    x = 333,633.70

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1.5x scale

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.