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Finding the Fourth Proportional to 652,434.40, 978,651.60 and 605,195.20

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Solution

The fourth proportional to 652,434.40, 978,651.60 and 605,195.20 is: 907,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,434.40 : 978,651.60 = 605,195.20 : x
  2. Step 2: Convert to fraction form
    652,434.40/978,651.60 = 605,195.20/x
  3. Step 3: Cross multiply
    652,434.40x = 978,651.60 × 605,195.20
  4. Step 4: Simplify right side
    652,434.40x = 592,275,250,792.32
  5. Step 5: Solve for x
    x = 592,275,250,792.32/652,434.40
  6. Step 6: Final answer
    x = 907,792.80

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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.