Home / 1,121,715.10-1,682,572.65-997,712.20

Finding the Fourth Proportional to 1,121,715.10, 1,682,572.65 and 997,712.20

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Solution

The fourth proportional to 1,121,715.10, 1,682,572.65 and 997,712.20 is: 1,496,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,715.10 : 1,682,572.65 = 997,712.20 : x
  2. Step 2: Convert to fraction form
    1,121,715.10/1,682,572.65 = 997,712.20/x
  3. Step 3: Cross multiply
    1,121,715.10x = 1,682,572.65 × 997,712.20
  4. Step 4: Simplify right side
    1,121,715.10x = 1,678,723,260,291.33
  5. Step 5: Solve for x
    x = 1,678,723,260,291.33/1,121,715.10
  6. Step 6: Final answer
    x = 1,496,568.30

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Double scale
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Similar ratio
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1.5x scale

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.