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Finding the Fourth Proportional to 626,537.60, 864,622.64 and 340,057.75

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Solution

The fourth proportional to 626,537.60, 864,622.64 and 340,057.75 is: 469,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,537.60 : 864,622.64 = 340,057.75 : x
  2. Step 2: Convert to fraction form
    626,537.60/864,622.64 = 340,057.75/x
  3. Step 3: Cross multiply
    626,537.60x = 864,622.64 × 340,057.75
  4. Step 4: Simplify right side
    626,537.60x = 294,021,629,557.46
  5. Step 5: Solve for x
    x = 294,021,629,557.46/626,537.60
  6. Step 6: Final answer
    x = 469,280.10

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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.