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Finding the Fourth Proportional to 498,653.88, 747,980.78 and 124,676.88

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Solution

The fourth proportional to 498,653.88, 747,980.78 and 124,676.88 is: 187,015.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,653.88 : 747,980.78 = 124,676.88 : x
  2. Step 2: Convert to fraction form
    498,653.88/747,980.78 = 124,676.88/x
  3. Step 3: Cross multiply
    498,653.88x = 747,980.78 × 124,676.88
  4. Step 4: Simplify right side
    498,653.88x = 93,255,909,950.37
  5. Step 5: Solve for x
    x = 93,255,909,950.37/498,653.88
  6. Step 6: Final answer
    x = 187,015.31

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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.