Home / 1,212,219-1,818,401.40-370,778.04

Finding the Fourth Proportional to 1,212,219, 1,818,401.40 and 370,778.04

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Solution

The fourth proportional to 1,212,219, 1,818,401.40 and 370,778.04 is: 556,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,219 : 1,818,401.40 = 370,778.04 : x
  2. Step 2: Convert to fraction form
    1,212,219/1,818,401.40 = 370,778.04/x
  3. Step 3: Cross multiply
    1,212,219x = 1,818,401.40 × 370,778.04
  4. Step 4: Simplify right side
    1,212,219x = 674,223,307,025.26
  5. Step 5: Solve for x
    x = 674,223,307,025.26/1,212,219
  6. Step 6: Final answer
    x = 556,189.36

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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.