Home / 1,342,679.40-1,852,842.96-769,320.84

Finding the Fourth Proportional to 1,342,679.40, 1,852,842.96 and 769,320.84

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Solution

The fourth proportional to 1,342,679.40, 1,852,842.96 and 769,320.84 is: 1,061,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,679.40 : 1,852,842.96 = 769,320.84 : x
  2. Step 2: Convert to fraction form
    1,342,679.40/1,852,842.96 = 769,320.84/x
  3. Step 3: Cross multiply
    1,342,679.40x = 1,852,842.96 × 769,320.84
  4. Step 4: Simplify right side
    1,342,679.40x = 1,425,430,702,375.29
  5. Step 5: Solve for x
    x = 1,425,430,702,375.29/1,342,679.40
  6. Step 6: Final answer
    x = 1,061,631.47

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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.