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Finding the Fourth Proportional to 867,249.42, 1,300,866.86 and 677,869.06

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Solution

The fourth proportional to 867,249.42, 1,300,866.86 and 677,869.06 is: 1,016,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,249.42 : 1,300,866.86 = 677,869.06 : x
  2. Step 2: Convert to fraction form
    867,249.42/1,300,866.86 = 677,869.06/x
  3. Step 3: Cross multiply
    867,249.42x = 1,300,866.86 × 677,869.06
  4. Step 4: Simplify right side
    867,249.42x = 881,817,392,184.01
  5. Step 5: Solve for x
    x = 881,817,392,184.01/867,249.42
  6. Step 6: Final answer
    x = 1,016,797.91

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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.