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Finding the Fourth Proportional to 677,240.50, 934,586.94 and 371,311.84

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Solution

The fourth proportional to 677,240.50, 934,586.94 and 371,311.84 is: 512,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,240.50 : 934,586.94 = 371,311.84 : x
  2. Step 2: Convert to fraction form
    677,240.50/934,586.94 = 371,311.84/x
  3. Step 3: Cross multiply
    677,240.50x = 934,586.94 × 371,311.84
  4. Step 4: Simplify right side
    677,240.50x = 347,023,196,803.39
  5. Step 5: Solve for x
    x = 347,023,196,803.39/677,240.50
  6. Step 6: Final answer
    x = 512,407.63

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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.