Home / 1,133,406.18-1,565,139.60-720,076.55

Finding the Fourth Proportional to 1,133,406.18, 1,565,139.60 and 720,076.55

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Solution

The fourth proportional to 1,133,406.18, 1,565,139.60 and 720,076.55 is: 994,365.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,406.18 : 1,565,139.60 = 720,076.55 : x
  2. Step 2: Convert to fraction form
    1,133,406.18/1,565,139.60 = 720,076.55/x
  3. Step 3: Cross multiply
    1,133,406.18x = 1,565,139.60 × 720,076.55
  4. Step 4: Simplify right side
    1,133,406.18x = 1,127,020,315,610.68
  5. Step 5: Solve for x
    x = 1,127,020,315,610.68/1,133,406.18
  6. Step 6: Final answer
    x = 994,365.78

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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.