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Finding the Fourth Proportional to 426,910.07, 640,475.78 and 227,066.06

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Solution

The fourth proportional to 426,910.07, 640,475.78 and 227,066.06 is: 340,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,910.07 : 640,475.78 = 227,066.06 : x
  2. Step 2: Convert to fraction form
    426,910.07/640,475.78 = 227,066.06/x
  3. Step 3: Cross multiply
    426,910.07x = 640,475.78 × 227,066.06
  4. Step 4: Simplify right side
    426,910.07x = 145,430,312,355.89
  5. Step 5: Solve for x
    x = 145,430,312,355.89/426,910.07
  6. Step 6: Final answer
    x = 340,657.96

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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.