Home / 1,235,785.64-1,853,762.70-394,400.84

Finding the Fourth Proportional to 1,235,785.64, 1,853,762.70 and 394,400.84

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Solution

The fourth proportional to 1,235,785.64, 1,853,762.70 and 394,400.84 is: 591,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,785.64 : 1,853,762.70 = 394,400.84 : x
  2. Step 2: Convert to fraction form
    1,235,785.64/1,853,762.70 = 394,400.84/x
  3. Step 3: Cross multiply
    1,235,785.64x = 1,853,762.70 × 394,400.84
  4. Step 4: Simplify right side
    1,235,785.64x = 731,125,566,040.67
  5. Step 5: Solve for x
    x = 731,125,566,040.67/1,235,785.64
  6. Step 6: Final answer
    x = 591,628.15

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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.