Home / 426,117.70-639,176.55-268,524.10

Finding the Fourth Proportional to 426,117.70, 639,176.55 and 268,524.10

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Solution

The fourth proportional to 426,117.70, 639,176.55 and 268,524.10 is: 402,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,117.70 : 639,176.55 = 268,524.10 : x
  2. Step 2: Convert to fraction form
    426,117.70/639,176.55 = 268,524.10/x
  3. Step 3: Cross multiply
    426,117.70x = 639,176.55 × 268,524.10
  4. Step 4: Simplify right side
    426,117.70x = 171,634,307,829.86
  5. Step 5: Solve for x
    x = 171,634,307,829.86/426,117.70
  6. Step 6: Final answer
    x = 402,786.15

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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.