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Finding the Fourth Proportional to 626,548.96, 864,638.16 and 340,069.12

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Solution

The fourth proportional to 626,548.96, 864,638.16 and 340,069.12 is: 469,295.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,548.96 : 864,638.16 = 340,069.12 : x
  2. Step 2: Convert to fraction form
    626,548.96/864,638.16 = 340,069.12/x
  3. Step 3: Cross multiply
    626,548.96x = 864,638.16 × 340,069.12
  4. Step 4: Simplify right side
    626,548.96x = 294,036,738,189.62
  5. Step 5: Solve for x
    x = 294,036,738,189.62/626,548.96
  6. Step 6: Final answer
    x = 469,295.71

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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.