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Finding the Fourth Proportional to 605,287.40, 907,712.40 and 245,307.20

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Solution

The fourth proportional to 605,287.40, 907,712.40 and 245,307.20 is: 367,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,287.40 : 907,712.40 = 245,307.20 : x
  2. Step 2: Convert to fraction form
    605,287.40/907,712.40 = 245,307.20/x
  3. Step 3: Cross multiply
    605,287.40x = 907,712.40 × 245,307.20
  4. Step 4: Simplify right side
    605,287.40x = 222,668,387,249.28
  5. Step 5: Solve for x
    x = 222,668,387,249.28/605,287.40
  6. Step 6: Final answer
    x = 367,872.17

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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.