Home / 1,377,216.80-2,065,825.20-929,319.20

Finding the Fourth Proportional to 1,377,216.80, 2,065,825.20 and 929,319.20

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Solution

The fourth proportional to 1,377,216.80, 2,065,825.20 and 929,319.20 is: 1,393,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,216.80 : 2,065,825.20 = 929,319.20 : x
  2. Step 2: Convert to fraction form
    1,377,216.80/2,065,825.20 = 929,319.20/x
  3. Step 3: Cross multiply
    1,377,216.80x = 2,065,825.20 × 929,319.20
  4. Step 4: Simplify right side
    1,377,216.80x = 1,919,811,022,203.84
  5. Step 5: Solve for x
    x = 1,919,811,022,203.84/1,377,216.80
  6. Step 6: Final answer
    x = 1,393,978.80

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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.