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Finding the Fourth Proportional to 872,647.80, 1,308,825.88 and 241,625.40

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Solution

The fourth proportional to 872,647.80, 1,308,825.88 and 241,625.40 is: 362,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,647.80 : 1,308,825.88 = 241,625.40 : x
  2. Step 2: Convert to fraction form
    872,647.80/1,308,825.88 = 241,625.40/x
  3. Step 3: Cross multiply
    872,647.80x = 1,308,825.88 × 241,625.40
  4. Step 4: Simplify right side
    872,647.80x = 316,245,576,785.35
  5. Step 5: Solve for x
    x = 316,245,576,785.35/872,647.80
  6. Step 6: Final answer
    x = 362,397.72

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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.