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Finding the Fourth Proportional to 508,353.57, 701,504.25 and 278,905.68

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Solution

The fourth proportional to 508,353.57, 701,504.25 and 278,905.68 is: 384,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,353.57 : 701,504.25 = 278,905.68 : x
  2. Step 2: Convert to fraction form
    508,353.57/701,504.25 = 278,905.68/x
  3. Step 3: Cross multiply
    508,353.57x = 701,504.25 × 278,905.68
  4. Step 4: Simplify right side
    508,353.57x = 195,653,518,823.24
  5. Step 5: Solve for x
    x = 195,653,518,823.24/508,353.57
  6. Step 6: Final answer
    x = 384,876.85

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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.