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Finding the Fourth Proportional to 661,522.14, 913,062.78 and 375,209.82

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Solution

The fourth proportional to 661,522.14, 913,062.78 and 375,209.82 is: 517,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,522.14 : 913,062.78 = 375,209.82 : x
  2. Step 2: Convert to fraction form
    661,522.14/913,062.78 = 375,209.82/x
  3. Step 3: Cross multiply
    661,522.14x = 913,062.78 × 375,209.82
  4. Step 4: Simplify right side
    661,522.14x = 342,590,121,332.50
  5. Step 5: Solve for x
    x = 342,590,121,332.50/661,522.14
  6. Step 6: Final answer
    x = 517,881.57

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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.