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Finding the Fourth Proportional to 496,521.78, 744,190.83 and 345,946.74

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Solution

The fourth proportional to 496,521.78, 744,190.83 and 345,946.74 is: 518,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,521.78 : 744,190.83 = 345,946.74 : x
  2. Step 2: Convert to fraction form
    496,521.78/744,190.83 = 345,946.74/x
  3. Step 3: Cross multiply
    496,521.78x = 744,190.83 × 345,946.74
  4. Step 4: Simplify right side
    496,521.78x = 257,450,391,576.39
  5. Step 5: Solve for x
    x = 257,450,391,576.39/496,521.78
  6. Step 6: Final answer
    x = 518,507.75

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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.