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Finding the Fourth Proportional to 604,540.80, 907,394.40 and 305,359.20

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Solution

The fourth proportional to 604,540.80, 907,394.40 and 305,359.20 is: 458,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,540.80 : 907,394.40 = 305,359.20 : x
  2. Step 2: Convert to fraction form
    604,540.80/907,394.40 = 305,359.20/x
  3. Step 3: Cross multiply
    604,540.80x = 907,394.40 × 305,359.20
  4. Step 4: Simplify right side
    604,540.80x = 277,081,228,068.48
  5. Step 5: Solve for x
    x = 277,081,228,068.48/604,540.80
  6. Step 6: Final answer
    x = 458,333.38

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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.