Home / 825,871.20-1,238,806.80-264,962.40

Finding the Fourth Proportional to 825,871.20, 1,238,806.80 and 264,962.40

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Solution

The fourth proportional to 825,871.20, 1,238,806.80 and 264,962.40 is: 397,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,871.20 : 1,238,806.80 = 264,962.40 : x
  2. Step 2: Convert to fraction form
    825,871.20/1,238,806.80 = 264,962.40/x
  3. Step 3: Cross multiply
    825,871.20x = 1,238,806.80 × 264,962.40
  4. Step 4: Simplify right side
    825,871.20x = 328,237,222,864.32
  5. Step 5: Solve for x
    x = 328,237,222,864.32/825,871.20
  6. Step 6: Final answer
    x = 397,443.60

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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.