Home / 1,340,485.80-2,012,161.18-542,289.12

Finding the Fourth Proportional to 1,340,485.80, 2,012,161.18 and 542,289.12

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Solution

The fourth proportional to 1,340,485.80, 2,012,161.18 and 542,289.12 is: 814,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,485.80 : 2,012,161.18 = 542,289.12 : x
  2. Step 2: Convert to fraction form
    1,340,485.80/2,012,161.18 = 542,289.12/x
  3. Step 3: Cross multiply
    1,340,485.80x = 2,012,161.18 × 542,289.12
  4. Step 4: Simplify right side
    1,340,485.80x = 1,091,173,115,600.36
  5. Step 5: Solve for x
    x = 1,091,173,115,600.36/1,340,485.80
  6. Step 6: Final answer
    x = 814,013.19

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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.