Home / 1,340,836.80-2,011,352.40-807,208.80

Finding the Fourth Proportional to 1,340,836.80, 2,011,352.40 and 807,208.80

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Solution

The fourth proportional to 1,340,836.80, 2,011,352.40 and 807,208.80 is: 1,210,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,836.80 : 2,011,352.40 = 807,208.80 : x
  2. Step 2: Convert to fraction form
    1,340,836.80/2,011,352.40 = 807,208.80/x
  3. Step 3: Cross multiply
    1,340,836.80x = 2,011,352.40 × 807,208.80
  4. Step 4: Simplify right side
    1,340,836.80x = 1,623,581,357,181.12
  5. Step 5: Solve for x
    x = 1,623,581,357,181.12/1,340,836.80
  6. Step 6: Final answer
    x = 1,210,871.72

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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.