Home / 1,289,720.20-1,934,580.30-1,165,717.30

Finding the Fourth Proportional to 1,289,720.20, 1,934,580.30 and 1,165,717.30

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Solution

The fourth proportional to 1,289,720.20, 1,934,580.30 and 1,165,717.30 is: 1,748,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,720.20 : 1,934,580.30 = 1,165,717.30 : x
  2. Step 2: Convert to fraction form
    1,289,720.20/1,934,580.30 = 1,165,717.30/x
  3. Step 3: Cross multiply
    1,289,720.20x = 1,934,580.30 × 1,165,717.30
  4. Step 4: Simplify right side
    1,289,720.20x = 2,255,173,723,949.19
  5. Step 5: Solve for x
    x = 2,255,173,723,949.19/1,289,720.20
  6. Step 6: Final answer
    x = 1,748,575.95

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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.