Home / 1,338,261.20-2,006,727.60-485,298.80

Finding the Fourth Proportional to 1,338,261.20, 2,006,727.60 and 485,298.80

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Solution

The fourth proportional to 1,338,261.20, 2,006,727.60 and 485,298.80 is: 727,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,261.20 : 2,006,727.60 = 485,298.80 : x
  2. Step 2: Convert to fraction form
    1,338,261.20/2,006,727.60 = 485,298.80/x
  3. Step 3: Cross multiply
    1,338,261.20x = 2,006,727.60 × 485,298.80
  4. Step 4: Simplify right side
    1,338,261.20x = 973,862,496,206.88
  5. Step 5: Solve for x
    x = 973,862,496,206.88/1,338,261.20
  6. Step 6: Final answer
    x = 727,707.34

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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.