Home / 859,165.80-1,288,748.70-738,443.40

Finding the Fourth Proportional to 859,165.80, 1,288,748.70 and 738,443.40

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Solution

The fourth proportional to 859,165.80, 1,288,748.70 and 738,443.40 is: 1,107,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,165.80 : 1,288,748.70 = 738,443.40 : x
  2. Step 2: Convert to fraction form
    859,165.80/1,288,748.70 = 738,443.40/x
  3. Step 3: Cross multiply
    859,165.80x = 1,288,748.70 × 738,443.40
  4. Step 4: Simplify right side
    859,165.80x = 951,667,971,773.58
  5. Step 5: Solve for x
    x = 951,667,971,773.58/859,165.80
  6. Step 6: Final answer
    x = 1,107,665.10

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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.