Home / 722,040.70-1,083,838.65-407,112.70

Finding the Fourth Proportional to 722,040.70, 1,083,838.65 and 407,112.70

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Solution

The fourth proportional to 722,040.70, 1,083,838.65 and 407,112.70 is: 611,107.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,040.70 : 1,083,838.65 = 407,112.70 : x
  2. Step 2: Convert to fraction form
    722,040.70/1,083,838.65 = 407,112.70/x
  3. Step 3: Cross multiply
    722,040.70x = 1,083,838.65 × 407,112.70
  4. Step 4: Simplify right side
    722,040.70x = 441,244,479,165.86
  5. Step 5: Solve for x
    x = 441,244,479,165.86/722,040.70
  6. Step 6: Final answer
    x = 611,107.49

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1.5x scale

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.