Home / 1,349,154.80-1,861,939.52-768,402.48

Finding the Fourth Proportional to 1,349,154.80, 1,861,939.52 and 768,402.48

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Solution

The fourth proportional to 1,349,154.80, 1,861,939.52 and 768,402.48 is: 1,060,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,154.80 : 1,861,939.52 = 768,402.48 : x
  2. Step 2: Convert to fraction form
    1,349,154.80/1,861,939.52 = 768,402.48/x
  3. Step 3: Cross multiply
    1,349,154.80x = 1,861,939.52 × 768,402.48
  4. Step 4: Simplify right side
    1,349,154.80x = 1,430,718,944,778.01
  5. Step 5: Solve for x
    x = 1,430,718,944,778.01/1,349,154.80
  6. Step 6: Final answer
    x = 1,060,455.73

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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.