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Finding the Fourth Proportional to 487,201.77, 730,636.11 and 247,223.12

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Solution

The fourth proportional to 487,201.77, 730,636.11 and 247,223.12 is: 370,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,201.77 : 730,636.11 = 247,223.12 : x
  2. Step 2: Convert to fraction form
    487,201.77/730,636.11 = 247,223.12/x
  3. Step 3: Cross multiply
    487,201.77x = 730,636.11 × 247,223.12
  4. Step 4: Simplify right side
    487,201.77x = 180,630,135,045.68
  5. Step 5: Solve for x
    x = 180,630,135,045.68/487,201.77
  6. Step 6: Final answer
    x = 370,750.16

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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.