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Finding the Fourth Proportional to 492,113.79, 738,170.64 and 281,602.89

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Solution

The fourth proportional to 492,113.79, 738,170.64 and 281,602.89 is: 422,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,113.79 : 738,170.64 = 281,602.89 : x
  2. Step 2: Convert to fraction form
    492,113.79/738,170.64 = 281,602.89/x
  3. Step 3: Cross multiply
    492,113.79x = 738,170.64 × 281,602.89
  4. Step 4: Simplify right side
    492,113.79x = 207,870,985,537.15
  5. Step 5: Solve for x
    x = 207,870,985,537.15/492,113.79
  6. Step 6: Final answer
    x = 422,404.31

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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.