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Finding the Fourth Proportional to 425,918.40, 587,956.32 and 275,088.96

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Solution

The fourth proportional to 425,918.40, 587,956.32 and 275,088.96 is: 379,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,918.40 : 587,956.32 = 275,088.96 : x
  2. Step 2: Convert to fraction form
    425,918.40/587,956.32 = 275,088.96/x
  3. Step 3: Cross multiply
    425,918.40x = 587,956.32 × 275,088.96
  4. Step 4: Simplify right side
    425,918.40x = 161,740,292,594.23
  5. Step 5: Solve for x
    x = 161,740,292,594.23/425,918.40
  6. Step 6: Final answer
    x = 379,744.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.