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Finding the Fourth Proportional to 508,404.20, 701,574.26 and 278,955.77

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Solution

The fourth proportional to 508,404.20, 701,574.26 and 278,955.77 is: 384,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,404.20 : 701,574.26 = 278,955.77 : x
  2. Step 2: Convert to fraction form
    508,404.20/701,574.26 = 278,955.77/x
  3. Step 3: Cross multiply
    508,404.20x = 701,574.26 × 278,955.77
  4. Step 4: Simplify right side
    508,404.20x = 195,708,183,007.83
  5. Step 5: Solve for x
    x = 195,708,183,007.83/508,404.20
  6. Step 6: Final answer
    x = 384,946.04

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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.