Home / 1,385,610.90-2,074,917.15-909,719.70

Finding the Fourth Proportional to 1,385,610.90, 2,074,917.15 and 909,719.70

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Solution

The fourth proportional to 1,385,610.90, 2,074,917.15 and 909,719.70 is: 1,362,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,610.90 : 2,074,917.15 = 909,719.70 : x
  2. Step 2: Convert to fraction form
    1,385,610.90/2,074,917.15 = 909,719.70/x
  3. Step 3: Cross multiply
    1,385,610.90x = 2,074,917.15 × 909,719.70
  4. Step 4: Simplify right side
    1,385,610.90x = 1,887,593,007,222.85
  5. Step 5: Solve for x
    x = 1,887,593,007,222.85/1,385,610.90
  6. Step 6: Final answer
    x = 1,362,282.16

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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.