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Finding the Fourth Proportional to 555,280.38, 832,815.54 and 270,685.26

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Solution

The fourth proportional to 555,280.38, 832,815.54 and 270,685.26 is: 405,976.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,280.38 : 832,815.54 = 270,685.26 : x
  2. Step 2: Convert to fraction form
    555,280.38/832,815.54 = 270,685.26/x
  3. Step 3: Cross multiply
    555,280.38x = 832,815.54 × 270,685.26
  4. Step 4: Simplify right side
    555,280.38x = 225,430,890,976.94
  5. Step 5: Solve for x
    x = 225,430,890,976.94/555,280.38
  6. Step 6: Final answer
    x = 405,976.69

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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.