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Finding the Fourth Proportional to 3,929,985.68, 5,894,978.52 and 1,090,097.84

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Solution

The fourth proportional to 3,929,985.68, 5,894,978.52 and 1,090,097.84 is: 1,635,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,985.68 : 5,894,978.52 = 1,090,097.84 : x
  2. Step 2: Convert to fraction form
    3,929,985.68/5,894,978.52 = 1,090,097.84/x
  3. Step 3: Cross multiply
    3,929,985.68x = 5,894,978.52 × 1,090,097.84
  4. Step 4: Simplify right side
    3,929,985.68x = 6,426,103,322,023.50
  5. Step 5: Solve for x
    x = 6,426,103,322,023.50/3,929,985.68
  6. Step 6: Final answer
    x = 1,635,146.75

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Similar ratio
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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.