Home / 1,091,428.28-1,638,259.56-901,282.80

Finding the Fourth Proportional to 1,091,428.28, 1,638,259.56 and 901,282.80

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Solution

The fourth proportional to 1,091,428.28, 1,638,259.56 and 901,282.80 is: 1,352,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,428.28 : 1,638,259.56 = 901,282.80 : x
  2. Step 2: Convert to fraction form
    1,091,428.28/1,638,259.56 = 901,282.80/x
  3. Step 3: Cross multiply
    1,091,428.28x = 1,638,259.56 × 901,282.80
  4. Step 4: Simplify right side
    1,091,428.28x = 1,476,535,163,363.57
  5. Step 5: Solve for x
    x = 1,476,535,163,363.57/1,091,428.28
  6. Step 6: Final answer
    x = 1,352,846.72

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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.