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Finding the Fourth Proportional to 1,745,842.15, 2,408,984.58 and 981,748.15

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Solution

The fourth proportional to 1,745,842.15, 2,408,984.58 and 981,748.15 is: 1,354,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745,842.15 : 2,408,984.58 = 981,748.15 : x
  2. Step 2: Convert to fraction form
    1,745,842.15/2,408,984.58 = 981,748.15/x
  3. Step 3: Cross multiply
    1,745,842.15x = 2,408,984.58 × 981,748.15
  4. Step 4: Simplify right side
    1,745,842.15x = 2,365,016,149,884.79
  5. Step 5: Solve for x
    x = 2,365,016,149,884.79/1,745,842.15
  6. Step 6: Final answer
    x = 1,354,656.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.