Home / 717,745.20-1,076,617.80-291,280.20

Finding the Fourth Proportional to 717,745.20, 1,076,617.80 and 291,280.20

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Solution

The fourth proportional to 717,745.20, 1,076,617.80 and 291,280.20 is: 436,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,745.20 : 1,076,617.80 = 291,280.20 : x
  2. Step 2: Convert to fraction form
    717,745.20/1,076,617.80 = 291,280.20/x
  3. Step 3: Cross multiply
    717,745.20x = 1,076,617.80 × 291,280.20
  4. Step 4: Simplify right side
    717,745.20x = 313,597,448,107.56
  5. Step 5: Solve for x
    x = 313,597,448,107.56/717,745.20
  6. Step 6: Final answer
    x = 436,920.30

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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.