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Finding the Fourth Proportional to 526,787.34, 726,960.99 and 285,064.62

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Solution

The fourth proportional to 526,787.34, 726,960.99 and 285,064.62 is: 393,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,787.34 : 726,960.99 = 285,064.62 : x
  2. Step 2: Convert to fraction form
    526,787.34/726,960.99 = 285,064.62/x
  3. Step 3: Cross multiply
    526,787.34x = 726,960.99 × 285,064.62
  4. Step 4: Simplify right side
    526,787.34x = 207,230,858,369.17
  5. Step 5: Solve for x
    x = 207,230,858,369.17/526,787.34
  6. Step 6: Final answer
    x = 393,386.18

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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.