Home / 2,686,121.12-4,029,339.64-766,884.80

Finding the Fourth Proportional to 2,686,121.12, 4,029,339.64 and 766,884.80

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Solution

The fourth proportional to 2,686,121.12, 4,029,339.64 and 766,884.80 is: 1,150,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,121.12 : 4,029,339.64 = 766,884.80 : x
  2. Step 2: Convert to fraction form
    2,686,121.12/4,029,339.64 = 766,884.80/x
  3. Step 3: Cross multiply
    2,686,121.12x = 4,029,339.64 × 766,884.80
  4. Step 4: Simplify right side
    2,686,121.12x = 3,090,039,323,953.47
  5. Step 5: Solve for x
    x = 3,090,039,323,953.47/2,686,121.12
  6. Step 6: Final answer
    x = 1,150,372.30

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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.