Home / 427,332.08-640,761.47-174,789.90

Finding the Fourth Proportional to 427,332.08, 640,761.47 and 174,789.90

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Solution

The fourth proportional to 427,332.08, 640,761.47 and 174,789.90 is: 262,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,332.08 : 640,761.47 = 174,789.90 : x
  2. Step 2: Convert to fraction form
    427,332.08/640,761.47 = 174,789.90/x
  3. Step 3: Cross multiply
    427,332.08x = 640,761.47 × 174,789.90
  4. Step 4: Simplify right side
    427,332.08x = 111,998,632,391.20
  5. Step 5: Solve for x
    x = 111,998,632,391.20/427,332.08
  6. Step 6: Final answer
    x = 262,088.06

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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.