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Finding the Fourth Proportional to 607,934.22, 911,919.76 and 208,569.22

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Solution

The fourth proportional to 607,934.22, 911,919.76 and 208,569.22 is: 312,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,934.22 : 911,919.76 = 208,569.22 : x
  2. Step 2: Convert to fraction form
    607,934.22/911,919.76 = 208,569.22/x
  3. Step 3: Cross multiply
    607,934.22x = 911,919.76 × 208,569.22
  4. Step 4: Simplify right side
    607,934.22x = 190,198,393,045.79
  5. Step 5: Solve for x
    x = 190,198,393,045.79/607,934.22
  6. Step 6: Final answer
    x = 312,860.15

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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.