Home / 1,276,822.78-1,911,855.25-770,707.24

Finding the Fourth Proportional to 1,276,822.78, 1,911,855.25 and 770,707.24

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Solution

The fourth proportional to 1,276,822.78, 1,911,855.25 and 770,707.24 is: 1,154,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,822.78 : 1,911,855.25 = 770,707.24 : x
  2. Step 2: Convert to fraction form
    1,276,822.78/1,911,855.25 = 770,707.24/x
  3. Step 3: Cross multiply
    1,276,822.78x = 1,911,855.25 × 770,707.24
  4. Step 4: Simplify right side
    1,276,822.78x = 1,473,480,679,190.76
  5. Step 5: Solve for x
    x = 1,473,480,679,190.76/1,276,822.78
  6. Step 6: Final answer
    x = 1,154,021.30

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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.