Home / 1,340,674.90-2,011,012.35-1,242,259.90

Finding the Fourth Proportional to 1,340,674.90, 2,011,012.35 and 1,242,259.90

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Solution

The fourth proportional to 1,340,674.90, 2,011,012.35 and 1,242,259.90 is: 1,863,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,674.90 : 2,011,012.35 = 1,242,259.90 : x
  2. Step 2: Convert to fraction form
    1,340,674.90/2,011,012.35 = 1,242,259.90/x
  3. Step 3: Cross multiply
    1,340,674.90x = 2,011,012.35 × 1,242,259.90
  4. Step 4: Simplify right side
    1,340,674.90x = 2,498,200,000,809.77
  5. Step 5: Solve for x
    x = 2,498,200,000,809.77/1,340,674.90
  6. Step 6: Final answer
    x = 1,863,389.85

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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.