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Finding the Fourth Proportional to 681,667.97, 940,708.38 and 375,756.17

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Solution

The fourth proportional to 681,667.97, 940,708.38 and 375,756.17 is: 518,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,667.97 : 940,708.38 = 375,756.17 : x
  2. Step 2: Convert to fraction form
    681,667.97/940,708.38 = 375,756.17/x
  3. Step 3: Cross multiply
    681,667.97x = 940,708.38 × 375,756.17
  4. Step 4: Simplify right side
    681,667.97x = 353,476,977,955.71
  5. Step 5: Solve for x
    x = 353,476,977,955.71/681,667.97
  6. Step 6: Final answer
    x = 518,547.14

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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.