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Finding the Fourth Proportional to 748,671, 1,122,332.58 and 275,255.16

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Solution

The fourth proportional to 748,671, 1,122,332.58 and 275,255.16 is: 412,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,671 : 1,122,332.58 = 275,255.16 : x
  2. Step 2: Convert to fraction form
    748,671/1,122,332.58 = 275,255.16/x
  3. Step 3: Cross multiply
    748,671x = 1,122,332.58 × 275,255.16
  4. Step 4: Simplify right side
    748,671x = 308,927,833,881.11
  5. Step 5: Solve for x
    x = 308,927,833,881.11/748,671
  6. Step 6: Final answer
    x = 412,634.97

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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.