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Finding the Fourth Proportional to 339,675.10, 509,512.65 and 334,426.30

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Solution

The fourth proportional to 339,675.10, 509,512.65 and 334,426.30 is: 501,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,675.10 : 509,512.65 = 334,426.30 : x
  2. Step 2: Convert to fraction form
    339,675.10/509,512.65 = 334,426.30/x
  3. Step 3: Cross multiply
    339,675.10x = 509,512.65 × 334,426.30
  4. Step 4: Simplify right side
    339,675.10x = 170,394,430,342.70
  5. Step 5: Solve for x
    x = 170,394,430,342.70/339,675.10
  6. Step 6: Final answer
    x = 501,639.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.