Home / 429,000.52-643,670.27-162,831.69

Finding the Fourth Proportional to 429,000.52, 643,670.27 and 162,831.69

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Solution

The fourth proportional to 429,000.52, 643,670.27 and 162,831.69 is: 244,311.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,000.52 : 643,670.27 = 162,831.69 : x
  2. Step 2: Convert to fraction form
    429,000.52/643,670.27 = 162,831.69/x
  3. Step 3: Cross multiply
    429,000.52x = 643,670.27 × 162,831.69
  4. Step 4: Simplify right side
    429,000.52x = 104,809,915,055.58
  5. Step 5: Solve for x
    x = 104,809,915,055.58/429,000.52
  6. Step 6: Final answer
    x = 244,311.86

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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.