Home / 1,557,059.20-2,335,588.80-1,388,769.55

Finding the Fourth Proportional to 1,557,059.20, 2,335,588.80 and 1,388,769.55

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Solution

The fourth proportional to 1,557,059.20, 2,335,588.80 and 1,388,769.55 is: 2,083,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,059.20 : 2,335,588.80 = 1,388,769.55 : x
  2. Step 2: Convert to fraction form
    1,557,059.20/2,335,588.80 = 1,388,769.55/x
  3. Step 3: Cross multiply
    1,557,059.20x = 2,335,588.80 × 1,388,769.55
  4. Step 4: Simplify right side
    1,557,059.20x = 3,243,594,606,761.04
  5. Step 5: Solve for x
    x = 3,243,594,606,761.04/1,557,059.20
  6. Step 6: Final answer
    x = 2,083,154.33

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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.