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Finding the Fourth Proportional to 478,951.84, 660,919.74 and 264,087.33

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Solution

The fourth proportional to 478,951.84, 660,919.74 and 264,087.33 is: 364,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,951.84 : 660,919.74 = 264,087.33 : x
  2. Step 2: Convert to fraction form
    478,951.84/660,919.74 = 264,087.33/x
  3. Step 3: Cross multiply
    478,951.84x = 660,919.74 × 264,087.33
  4. Step 4: Simplify right side
    478,951.84x = 174,540,527,828.60
  5. Step 5: Solve for x
    x = 174,540,527,828.60/478,951.84
  6. Step 6: Final answer
    x = 364,421.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.