Home / 1,340,815.80-2,011,320.90-807,187.80

Finding the Fourth Proportional to 1,340,815.80, 2,011,320.90 and 807,187.80

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Solution

The fourth proportional to 1,340,815.80, 2,011,320.90 and 807,187.80 is: 1,210,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,815.80 : 2,011,320.90 = 807,187.80 : x
  2. Step 2: Convert to fraction form
    1,340,815.80/2,011,320.90 = 807,187.80/x
  3. Step 3: Cross multiply
    1,340,815.80x = 2,011,320.90 × 807,187.80
  4. Step 4: Simplify right side
    1,340,815.80x = 1,623,513,692,365.02
  5. Step 5: Solve for x
    x = 1,623,513,692,365.02/1,340,815.80
  6. Step 6: Final answer
    x = 1,210,840.22

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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.