Home / 690,454.31-1,035,694.43-191,831.27

Finding the Fourth Proportional to 690,454.31, 1,035,694.43 and 191,831.27

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Solution

The fourth proportional to 690,454.31, 1,035,694.43 and 191,831.27 is: 287,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,454.31 : 1,035,694.43 = 191,831.27 : x
  2. Step 2: Convert to fraction form
    690,454.31/1,035,694.43 = 191,831.27/x
  3. Step 3: Cross multiply
    690,454.31x = 1,035,694.43 × 191,831.27
  4. Step 4: Simplify right side
    690,454.31x = 198,678,580,907.64
  5. Step 5: Solve for x
    x = 198,678,580,907.64/690,454.31
  6. Step 6: Final answer
    x = 287,750.51

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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.