Home / 1,289,868.40-1,933,420.20-490,841.20

Finding the Fourth Proportional to 1,289,868.40, 1,933,420.20 and 490,841.20

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Solution

The fourth proportional to 1,289,868.40, 1,933,420.20 and 490,841.20 is: 735,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,868.40 : 1,933,420.20 = 490,841.20 : x
  2. Step 2: Convert to fraction form
    1,289,868.40/1,933,420.20 = 490,841.20/x
  3. Step 3: Cross multiply
    1,289,868.40x = 1,933,420.20 × 490,841.20
  4. Step 4: Simplify right side
    1,289,868.40x = 949,002,291,072.24
  5. Step 5: Solve for x
    x = 949,002,291,072.24/1,289,868.40
  6. Step 6: Final answer
    x = 735,735.75

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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.