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Finding the Fourth Proportional to 440,122.60, 659,406.30 and 360,807.40

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Solution

The fourth proportional to 440,122.60, 659,406.30 and 360,807.40 is: 540,573.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122.60 : 659,406.30 = 360,807.40 : x
  2. Step 2: Convert to fraction form
    440,122.60/659,406.30 = 360,807.40/x
  3. Step 3: Cross multiply
    440,122.60x = 659,406.30 × 360,807.40
  4. Step 4: Simplify right side
    440,122.60x = 237,918,672,646.62
  5. Step 5: Solve for x
    x = 237,918,672,646.62/440,122.60
  6. Step 6: Final answer
    x = 540,573.63

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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.