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Finding the Fourth Proportional to 634,880.57, 876,092.05 and 348,419.11

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Solution

The fourth proportional to 634,880.57, 876,092.05 and 348,419.11 is: 480,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,880.57 : 876,092.05 = 348,419.11 : x
  2. Step 2: Convert to fraction form
    634,880.57/876,092.05 = 348,419.11/x
  3. Step 3: Cross multiply
    634,880.57x = 876,092.05 × 348,419.11
  4. Step 4: Simplify right side
    634,880.57x = 305,247,212,339.08
  5. Step 5: Solve for x
    x = 305,247,212,339.08/634,880.57
  6. Step 6: Final answer
    x = 480,794.70

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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.