Home / 1,107,221.15-1,527,646.72-720,605.72

Finding the Fourth Proportional to 1,107,221.15, 1,527,646.72 and 720,605.72

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Solution

The fourth proportional to 1,107,221.15, 1,527,646.72 and 720,605.72 is: 994,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,221.15 : 1,527,646.72 = 720,605.72 : x
  2. Step 2: Convert to fraction form
    1,107,221.15/1,527,646.72 = 720,605.72/x
  3. Step 3: Cross multiply
    1,107,221.15x = 1,527,646.72 × 720,605.72
  4. Step 4: Simplify right side
    1,107,221.15x = 1,100,830,964,571.24
  5. Step 5: Solve for x
    x = 1,100,830,964,571.24/1,107,221.15
  6. Step 6: Final answer
    x = 994,228.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.