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Finding the Fourth Proportional to 652,678.51, 979,016.42 and 368,239.94

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Solution

The fourth proportional to 652,678.51, 979,016.42 and 368,239.94 is: 552,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,678.51 : 979,016.42 = 368,239.94 : x
  2. Step 2: Convert to fraction form
    652,678.51/979,016.42 = 368,239.94/x
  3. Step 3: Cross multiply
    652,678.51x = 979,016.42 × 368,239.94
  4. Step 4: Simplify right side
    652,678.51x = 360,512,947,759.82
  5. Step 5: Solve for x
    x = 360,512,947,759.82/652,678.51
  6. Step 6: Final answer
    x = 552,359.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.