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Finding the Fourth Proportional to 440,124.60, 659,409.30 and 360,809.40

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Solution

The fourth proportional to 440,124.60, 659,409.30 and 360,809.40 is: 540,576.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,124.60 : 659,409.30 = 360,809.40 : x
  2. Step 2: Convert to fraction form
    440,124.60/659,409.30 = 360,809.40/x
  3. Step 3: Cross multiply
    440,124.60x = 659,409.30 × 360,809.40
  4. Step 4: Simplify right side
    440,124.60x = 237,921,073,887.42
  5. Step 5: Solve for x
    x = 237,921,073,887.42/440,124.60
  6. Step 6: Final answer
    x = 540,576.63

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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.