Home / 2,075,371.20-3,111,328.80-878,212.80

Finding the Fourth Proportional to 2,075,371.20, 3,111,328.80 and 878,212.80

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Solution

The fourth proportional to 2,075,371.20, 3,111,328.80 and 878,212.80 is: 1,316,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075,371.20 : 3,111,328.80 = 878,212.80 : x
  2. Step 2: Convert to fraction form
    2,075,371.20/3,111,328.80 = 878,212.80/x
  3. Step 3: Cross multiply
    2,075,371.20x = 3,111,328.80 × 878,212.80
  4. Step 4: Simplify right side
    2,075,371.20x = 2,732,408,777,168.64
  5. Step 5: Solve for x
    x = 2,732,408,777,168.64/2,075,371.20
  6. Step 6: Final answer
    x = 1,316,587.98

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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.