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Finding the Fourth Proportional to 491,055.89, 736,287.37 and 191,479.01

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Solution

The fourth proportional to 491,055.89, 736,287.37 and 191,479.01 is: 287,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,055.89 : 736,287.37 = 191,479.01 : x
  2. Step 2: Convert to fraction form
    491,055.89/736,287.37 = 191,479.01/x
  3. Step 3: Cross multiply
    491,055.89x = 736,287.37 × 191,479.01
  4. Step 4: Simplify right side
    491,055.89x = 140,983,572,522.97
  5. Step 5: Solve for x
    x = 140,983,572,522.97/491,055.89
  6. Step 6: Final answer
    x = 287,102.91

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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.