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Finding the Fourth Proportional to 492,394.46, 737,627.56 and 438,838.46

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Solution

The fourth proportional to 492,394.46, 737,627.56 and 438,838.46 is: 657,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,394.46 : 737,627.56 = 438,838.46 : x
  2. Step 2: Convert to fraction form
    492,394.46/737,627.56 = 438,838.46/x
  3. Step 3: Cross multiply
    492,394.46x = 737,627.56 × 438,838.46
  4. Step 4: Simplify right side
    492,394.46x = 323,699,342,483.96
  5. Step 5: Solve for x
    x = 323,699,342,483.96/492,394.46
  6. Step 6: Final answer
    x = 657,398.43

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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.