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Finding the Fourth Proportional to 615,914.80, 923,472.60 and 260,832.40

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Solution

The fourth proportional to 615,914.80, 923,472.60 and 260,832.40 is: 391,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,914.80 : 923,472.60 = 260,832.40 : x
  2. Step 2: Convert to fraction form
    615,914.80/923,472.60 = 260,832.40/x
  3. Step 3: Cross multiply
    615,914.80x = 923,472.60 × 260,832.40
  4. Step 4: Simplify right side
    615,914.80x = 240,871,574,592.24
  5. Step 5: Solve for x
    x = 240,871,574,592.24/615,914.80
  6. Step 6: Final answer
    x = 391,079.37

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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.