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Finding the Fourth Proportional to 615,954.81, 923,771.84 and 260,786.01

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Solution

The fourth proportional to 615,954.81, 923,771.84 and 260,786.01 is: 391,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,954.81 : 923,771.84 = 260,786.01 : x
  2. Step 2: Convert to fraction form
    615,954.81/923,771.84 = 260,786.01/x
  3. Step 3: Cross multiply
    615,954.81x = 923,771.84 × 260,786.01
  4. Step 4: Simplify right side
    615,954.81x = 240,906,775,931.09
  5. Step 5: Solve for x
    x = 240,906,775,931.09/615,954.81
  6. Step 6: Final answer
    x = 391,111.12

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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.