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Finding the Fourth Proportional to 666,468.54, 919,722.80 and 360,544.04

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Solution

The fourth proportional to 666,468.54, 919,722.80 and 360,544.04 is: 497,548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,468.54 : 919,722.80 = 360,544.04 : x
  2. Step 2: Convert to fraction form
    666,468.54/919,722.80 = 360,544.04/x
  3. Step 3: Cross multiply
    666,468.54x = 919,722.80 × 360,544.04
  4. Step 4: Simplify right side
    666,468.54x = 331,600,571,157.10
  5. Step 5: Solve for x
    x = 331,600,571,157.10/666,468.54
  6. Step 6: Final answer
    x = 497,548.72

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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.