Home / 1,121,605.60-1,682,408.40-997,602.70

Finding the Fourth Proportional to 1,121,605.60, 1,682,408.40 and 997,602.70

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Solution

The fourth proportional to 1,121,605.60, 1,682,408.40 and 997,602.70 is: 1,496,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,605.60 : 1,682,408.40 = 997,602.70 : x
  2. Step 2: Convert to fraction form
    1,121,605.60/1,682,408.40 = 997,602.70/x
  3. Step 3: Cross multiply
    1,121,605.60x = 1,682,408.40 × 997,602.70
  4. Step 4: Simplify right side
    1,121,605.60x = 1,678,375,162,342.68
  5. Step 5: Solve for x
    x = 1,678,375,162,342.68/1,121,605.60
  6. Step 6: Final answer
    x = 1,496,404.05

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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.