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Finding the Fourth Proportional to 707,073.54, 976,745.43 and 680,825.40

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Solution

The fourth proportional to 707,073.54, 976,745.43 and 680,825.40 is: 940,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,073.54 : 976,745.43 = 680,825.40 : x
  2. Step 2: Convert to fraction form
    707,073.54/976,745.43 = 680,825.40/x
  3. Step 3: Cross multiply
    707,073.54x = 976,745.43 × 680,825.40
  4. Step 4: Simplify right side
    707,073.54x = 664,993,098,077.92
  5. Step 5: Solve for x
    x = 664,993,098,077.92/707,073.54
  6. Step 6: Final answer
    x = 940,486.47

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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.