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Finding the Fourth Proportional to 439,615.60, 659,423.40 and 410,124.40

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Solution

The fourth proportional to 439,615.60, 659,423.40 and 410,124.40 is: 615,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,615.60 : 659,423.40 = 410,124.40 : x
  2. Step 2: Convert to fraction form
    439,615.60/659,423.40 = 410,124.40/x
  3. Step 3: Cross multiply
    439,615.60x = 659,423.40 × 410,124.40
  4. Step 4: Simplify right side
    439,615.60x = 270,445,626,270.96
  5. Step 5: Solve for x
    x = 270,445,626,270.96/439,615.60
  6. Step 6: Final answer
    x = 615,186.60

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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.