Home / 426,472.83-639,930.63-173,938.59

Finding the Fourth Proportional to 426,472.83, 639,930.63 and 173,938.59

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Solution

The fourth proportional to 426,472.83, 639,930.63 and 173,938.59 is: 260,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,472.83 : 639,930.63 = 173,938.59 : x
  2. Step 2: Convert to fraction form
    426,472.83/639,930.63 = 173,938.59/x
  3. Step 3: Cross multiply
    426,472.83x = 639,930.63 × 173,938.59
  4. Step 4: Simplify right side
    426,472.83x = 111,308,631,480.01
  5. Step 5: Solve for x
    x = 111,308,631,480.01/426,472.83
  6. Step 6: Final answer
    x = 260,998.18

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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.