Home / 1,289,715.70-1,934,573.55-1,165,712.80

Finding the Fourth Proportional to 1,289,715.70, 1,934,573.55 and 1,165,712.80

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Solution

The fourth proportional to 1,289,715.70, 1,934,573.55 and 1,165,712.80 is: 1,748,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,715.70 : 1,934,573.55 = 1,165,712.80 : x
  2. Step 2: Convert to fraction form
    1,289,715.70/1,934,573.55 = 1,165,712.80/x
  3. Step 3: Cross multiply
    1,289,715.70x = 1,934,573.55 × 1,165,712.80
  4. Step 4: Simplify right side
    1,289,715.70x = 2,255,157,149,776.44
  5. Step 5: Solve for x
    x = 2,255,157,149,776.44/1,289,715.70
  6. Step 6: Final answer
    x = 1,748,569.20

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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.