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Finding the Fourth Proportional to 626,558.10, 864,627 and 340,072.04

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Solution

The fourth proportional to 626,558.10, 864,627 and 340,072.04 is: 469,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,558.10 : 864,627 = 340,072.04 : x
  2. Step 2: Convert to fraction form
    626,558.10/864,627 = 340,072.04/x
  3. Step 3: Cross multiply
    626,558.10x = 864,627 × 340,072.04
  4. Step 4: Simplify right side
    626,558.10x = 294,035,467,729.08
  5. Step 5: Solve for x
    x = 294,035,467,729.08/626,558.10
  6. Step 6: Final answer
    x = 469,286.84

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1.5x scale

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.