Home / 439,259.20-659,666.40-339,661.60

Finding the Fourth Proportional to 439,259.20, 659,666.40 and 339,661.60

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Solution

The fourth proportional to 439,259.20, 659,666.40 and 339,661.60 is: 510,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,259.20 : 659,666.40 = 339,661.60 : x
  2. Step 2: Convert to fraction form
    439,259.20/659,666.40 = 339,661.60/x
  3. Step 3: Cross multiply
    439,259.20x = 659,666.40 × 339,661.60
  4. Step 4: Simplify right side
    439,259.20x = 224,063,344,890.24
  5. Step 5: Solve for x
    x = 224,063,344,890.24/439,259.20
  6. Step 6: Final answer
    x = 510,093.69

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1.5x scale

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.