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Finding the Fourth Proportional to 487,124.60, 729,650.10 and 404,180.60

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Solution

The fourth proportional to 487,124.60, 729,650.10 and 404,180.60 is: 605,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,124.60 : 729,650.10 = 404,180.60 : x
  2. Step 2: Convert to fraction form
    487,124.60/729,650.10 = 404,180.60/x
  3. Step 3: Cross multiply
    487,124.60x = 729,650.10 × 404,180.60
  4. Step 4: Simplify right side
    487,124.60x = 294,910,415,208.06
  5. Step 5: Solve for x
    x = 294,910,415,208.06/487,124.60
  6. Step 6: Final answer
    x = 605,410.64

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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.