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Finding the Fourth Proportional to 551,600.46, 761,204.12 and 309,877.94

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Solution

The fourth proportional to 551,600.46, 761,204.12 and 309,877.94 is: 427,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,600.46 : 761,204.12 = 309,877.94 : x
  2. Step 2: Convert to fraction form
    551,600.46/761,204.12 = 309,877.94/x
  3. Step 3: Cross multiply
    551,600.46x = 761,204.12 × 309,877.94
  4. Step 4: Simplify right side
    551,600.46x = 235,880,364,978.73
  5. Step 5: Solve for x
    x = 235,880,364,978.73/551,600.46
  6. Step 6: Final answer
    x = 427,629.02

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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.