Home / 1,121,503.60-1,682,255.40-997,500.70

Finding the Fourth Proportional to 1,121,503.60, 1,682,255.40 and 997,500.70

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Solution

The fourth proportional to 1,121,503.60, 1,682,255.40 and 997,500.70 is: 1,496,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,503.60 : 1,682,255.40 = 997,500.70 : x
  2. Step 2: Convert to fraction form
    1,121,503.60/1,682,255.40 = 997,500.70/x
  3. Step 3: Cross multiply
    1,121,503.60x = 1,682,255.40 × 997,500.70
  4. Step 4: Simplify right side
    1,121,503.60x = 1,678,050,939,078.78
  5. Step 5: Solve for x
    x = 1,678,050,939,078.78/1,121,503.60
  6. Step 6: Final answer
    x = 1,496,251.05

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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.