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Finding the Fourth Proportional to 661,759.14, 913,389.84 and 375,446.82

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Solution

The fourth proportional to 661,759.14, 913,389.84 and 375,446.82 is: 518,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,759.14 : 913,389.84 = 375,446.82 : x
  2. Step 2: Convert to fraction form
    661,759.14/913,389.84 = 375,446.82/x
  3. Step 3: Cross multiply
    661,759.14x = 913,389.84 × 375,446.82
  4. Step 4: Simplify right side
    661,759.14x = 342,929,310,848.31
  5. Step 5: Solve for x
    x = 342,929,310,848.31/661,759.14
  6. Step 6: Final answer
    x = 518,208.65

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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.