Home / 1,220,400.18-1,684,169.28-669,167.64

Finding the Fourth Proportional to 1,220,400.18, 1,684,169.28 and 669,167.64

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Solution

The fourth proportional to 1,220,400.18, 1,684,169.28 and 669,167.64 is: 923,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,400.18 : 1,684,169.28 = 669,167.64 : x
  2. Step 2: Convert to fraction form
    1,220,400.18/1,684,169.28 = 669,167.64/x
  3. Step 3: Cross multiply
    1,220,400.18x = 1,684,169.28 × 669,167.64
  4. Step 4: Simplify right side
    1,220,400.18x = 1,126,991,582,458.10
  5. Step 5: Solve for x
    x = 1,126,991,582,458.10/1,220,400.18
  6. Step 6: Final answer
    x = 923,460.68

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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.