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Finding the Fourth Proportional to 487,758.54, 731,643.96 and 171,994.02

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Solution

The fourth proportional to 487,758.54, 731,643.96 and 171,994.02 is: 257,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,758.54 : 731,643.96 = 171,994.02 : x
  2. Step 2: Convert to fraction form
    487,758.54/731,643.96 = 171,994.02/x
  3. Step 3: Cross multiply
    487,758.54x = 731,643.96 × 171,994.02
  4. Step 4: Simplify right side
    487,758.54x = 125,838,385,889.12
  5. Step 5: Solve for x
    x = 125,838,385,889.12/487,758.54
  6. Step 6: Final answer
    x = 257,993.20

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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.