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Finding the Fourth Proportional to 881,293.80, 1,321,866.87 and 348,671.82

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Solution

The fourth proportional to 881,293.80, 1,321,866.87 and 348,671.82 is: 522,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,293.80 : 1,321,866.87 = 348,671.82 : x
  2. Step 2: Convert to fraction form
    881,293.80/1,321,866.87 = 348,671.82/x
  3. Step 3: Cross multiply
    881,293.80x = 1,321,866.87 × 348,671.82
  4. Step 4: Simplify right side
    881,293.80x = 460,897,727,360.60
  5. Step 5: Solve for x
    x = 460,897,727,360.60/881,293.80
  6. Step 6: Final answer
    x = 522,978.52

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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.