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Finding the Fourth Proportional to 665,534.79, 997,902.32 and 260,244.18

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Solution

The fourth proportional to 665,534.79, 997,902.32 and 260,244.18 is: 390,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,534.79 : 997,902.32 = 260,244.18 : x
  2. Step 2: Convert to fraction form
    665,534.79/997,902.32 = 260,244.18/x
  3. Step 3: Cross multiply
    665,534.79x = 997,902.32 × 260,244.18
  4. Step 4: Simplify right side
    665,534.79x = 259,698,269,687.28
  5. Step 5: Solve for x
    x = 259,698,269,687.28/665,534.79
  6. Step 6: Final answer
    x = 390,209.91

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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.