Home / 426,501.63-639,200.19-173,488.41

Finding the Fourth Proportional to 426,501.63, 639,200.19 and 173,488.41

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Solution

The fourth proportional to 426,501.63, 639,200.19 and 173,488.41 is: 260,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,501.63 : 639,200.19 = 173,488.41 : x
  2. Step 2: Convert to fraction form
    426,501.63/639,200.19 = 173,488.41/x
  3. Step 3: Cross multiply
    426,501.63x = 639,200.19 × 173,488.41
  4. Step 4: Simplify right side
    426,501.63x = 110,893,824,634.80
  5. Step 5: Solve for x
    x = 110,893,824,634.80/426,501.63
  6. Step 6: Final answer
    x = 260,007.97

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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.