Home / 1,230,299.90-1,845,449.85-520,091.90

Finding the Fourth Proportional to 1,230,299.90, 1,845,449.85 and 520,091.90

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Solution

The fourth proportional to 1,230,299.90, 1,845,449.85 and 520,091.90 is: 780,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,299.90 : 1,845,449.85 = 520,091.90 : x
  2. Step 2: Convert to fraction form
    1,230,299.90/1,845,449.85 = 520,091.90/x
  3. Step 3: Cross multiply
    1,230,299.90x = 1,845,449.85 × 520,091.90
  4. Step 4: Simplify right side
    1,230,299.90x = 959,803,518,841.22
  5. Step 5: Solve for x
    x = 959,803,518,841.22/1,230,299.90
  6. Step 6: Final answer
    x = 780,137.85

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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.