Home / 426,499.62-639,197.20-173,486.40

Finding the Fourth Proportional to 426,499.62, 639,197.20 and 173,486.40

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Solution

The fourth proportional to 426,499.62, 639,197.20 and 173,486.40 is: 260,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,499.62 : 639,197.20 = 173,486.40 : x
  2. Step 2: Convert to fraction form
    426,499.62/639,197.20 = 173,486.40/x
  3. Step 3: Cross multiply
    426,499.62x = 639,197.20 × 173,486.40
  4. Step 4: Simplify right side
    426,499.62x = 110,892,021,118.08
  5. Step 5: Solve for x
    x = 110,892,021,118.08/426,499.62
  6. Step 6: Final answer
    x = 260,004.97

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1.5x scale

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.