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Finding the Fourth Proportional to 768,335.22, 1,152,683.87 and 262,901.70

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Solution

The fourth proportional to 768,335.22, 1,152,683.87 and 262,901.70 is: 394,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,335.22 : 1,152,683.87 = 262,901.70 : x
  2. Step 2: Convert to fraction form
    768,335.22/1,152,683.87 = 262,901.70/x
  3. Step 3: Cross multiply
    768,335.22x = 1,152,683.87 × 262,901.70
  4. Step 4: Simplify right side
    768,335.22x = 303,042,547,671.07
  5. Step 5: Solve for x
    x = 303,042,547,671.07/768,335.22
  6. Step 6: Final answer
    x = 394,414.49

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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.