Home / 1,203,168.78-1,804,934.61-520,242.50

Finding the Fourth Proportional to 1,203,168.78, 1,804,934.61 and 520,242.50

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Solution

The fourth proportional to 1,203,168.78, 1,804,934.61 and 520,242.50 is: 780,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,168.78 : 1,804,934.61 = 520,242.50 : x
  2. Step 2: Convert to fraction form
    1,203,168.78/1,804,934.61 = 520,242.50/x
  3. Step 3: Cross multiply
    1,203,168.78x = 1,804,934.61 × 520,242.50
  4. Step 4: Simplify right side
    1,203,168.78x = 939,003,698,355.26
  5. Step 5: Solve for x
    x = 939,003,698,355.26/1,203,168.78
  6. Step 6: Final answer
    x = 780,442.21

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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.