Home / 1,211,820.72-1,672,115.16-702,423.60

Finding the Fourth Proportional to 1,211,820.72, 1,672,115.16 and 702,423.60

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Solution

The fourth proportional to 1,211,820.72, 1,672,115.16 and 702,423.60 is: 969,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,820.72 : 1,672,115.16 = 702,423.60 : x
  2. Step 2: Convert to fraction form
    1,211,820.72/1,672,115.16 = 702,423.60/x
  3. Step 3: Cross multiply
    1,211,820.72x = 1,672,115.16 × 702,423.60
  4. Step 4: Simplify right side
    1,211,820.72x = 1,174,533,150,301.78
  5. Step 5: Solve for x
    x = 1,174,533,150,301.78/1,211,820.72
  6. Step 6: Final answer
    x = 969,230.13

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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.