Home / 426,840.24-640,260.38-146,359.92

Finding the Fourth Proportional to 426,840.24, 640,260.38 and 146,359.92

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Solution

The fourth proportional to 426,840.24, 640,260.38 and 146,359.92 is: 219,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,840.24 : 640,260.38 = 146,359.92 : x
  2. Step 2: Convert to fraction form
    426,840.24/640,260.38 = 146,359.92/x
  3. Step 3: Cross multiply
    426,840.24x = 640,260.38 × 146,359.92
  4. Step 4: Simplify right side
    426,840.24x = 93,708,457,995.97
  5. Step 5: Solve for x
    x = 93,708,457,995.97/426,840.24
  6. Step 6: Final answer
    x = 219,539.89

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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.