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Finding the Fourth Proportional to 652,246.90, 978,370.35 and 605,007.70

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Solution

The fourth proportional to 652,246.90, 978,370.35 and 605,007.70 is: 907,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,246.90 : 978,370.35 = 605,007.70 : x
  2. Step 2: Convert to fraction form
    652,246.90/978,370.35 = 605,007.70/x
  3. Step 3: Cross multiply
    652,246.90x = 978,370.35 × 605,007.70
  4. Step 4: Simplify right side
    652,246.90x = 591,921,595,201.70
  5. Step 5: Solve for x
    x = 591,921,595,201.70/652,246.90
  6. Step 6: Final answer
    x = 907,511.55

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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.