Home / 771,831.25-1,157,641.77-203,164.72

Finding the Fourth Proportional to 771,831.25, 1,157,641.77 and 203,164.72

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Solution

The fourth proportional to 771,831.25, 1,157,641.77 and 203,164.72 is: 304,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,831.25 : 1,157,641.77 = 203,164.72 : x
  2. Step 2: Convert to fraction form
    771,831.25/1,157,641.77 = 203,164.72/x
  3. Step 3: Cross multiply
    771,831.25x = 1,157,641.77 × 203,164.72
  4. Step 4: Simplify right side
    771,831.25x = 235,191,970,441.85
  5. Step 5: Solve for x
    x = 235,191,970,441.85/771,831.25
  6. Step 6: Final answer
    x = 304,719.42

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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.