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Finding the Fourth Proportional to 651,935.20, 978,313.20 and 277,952.80

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Solution

The fourth proportional to 651,935.20, 978,313.20 and 277,952.80 is: 417,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,935.20 : 978,313.20 = 277,952.80 : x
  2. Step 2: Convert to fraction form
    651,935.20/978,313.20 = 277,952.80/x
  3. Step 3: Cross multiply
    651,935.20x = 978,313.20 × 277,952.80
  4. Step 4: Simplify right side
    651,935.20x = 271,924,893,216.96
  5. Step 5: Solve for x
    x = 271,924,893,216.96/651,935.20
  6. Step 6: Final answer
    x = 417,104.17

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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.