Home / 1,368,045.20-2,052,067.80-864,160.40

Finding the Fourth Proportional to 1,368,045.20, 2,052,067.80 and 864,160.40

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Solution

The fourth proportional to 1,368,045.20, 2,052,067.80 and 864,160.40 is: 1,296,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,045.20 : 2,052,067.80 = 864,160.40 : x
  2. Step 2: Convert to fraction form
    1,368,045.20/2,052,067.80 = 864,160.40/x
  3. Step 3: Cross multiply
    1,368,045.20x = 2,052,067.80 × 864,160.40
  4. Step 4: Simplify right side
    1,368,045.20x = 1,773,315,730,875.12
  5. Step 5: Solve for x
    x = 1,773,315,730,875.12/1,368,045.20
  6. Step 6: Final answer
    x = 1,296,240.60

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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.