Home / 426,345.38-639,591.95-173,763.28

Finding the Fourth Proportional to 426,345.38, 639,591.95 and 173,763.28

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Solution

The fourth proportional to 426,345.38, 639,591.95 and 173,763.28 is: 260,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,345.38 : 639,591.95 = 173,763.28 : x
  2. Step 2: Convert to fraction form
    426,345.38/639,591.95 = 173,763.28/x
  3. Step 3: Cross multiply
    426,345.38x = 639,591.95 × 173,763.28
  4. Step 4: Simplify right side
    426,345.38x = 111,137,591,026.82
  5. Step 5: Solve for x
    x = 111,137,591,026.82/426,345.38
  6. Step 6: Final answer
    x = 260,675.02

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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.