Home / 1,188,164.20-1,783,121.10-478,701.40

Finding the Fourth Proportional to 1,188,164.20, 1,783,121.10 and 478,701.40

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Solution

The fourth proportional to 1,188,164.20, 1,783,121.10 and 478,701.40 is: 718,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,164.20 : 1,783,121.10 = 478,701.40 : x
  2. Step 2: Convert to fraction form
    1,188,164.20/1,783,121.10 = 478,701.40/x
  3. Step 3: Cross multiply
    1,188,164.20x = 1,783,121.10 × 478,701.40
  4. Step 4: Simplify right side
    1,188,164.20x = 853,582,566,939.54
  5. Step 5: Solve for x
    x = 853,582,566,939.54/1,188,164.20
  6. Step 6: Final answer
    x = 718,404.55

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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.