Home / 439,246.20-659,646.90-339,648.60

Finding the Fourth Proportional to 439,246.20, 659,646.90 and 339,648.60

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Solution

The fourth proportional to 439,246.20, 659,646.90 and 339,648.60 is: 510,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,246.20 : 659,646.90 = 339,648.60 : x
  2. Step 2: Convert to fraction form
    439,246.20/659,646.90 = 339,648.60/x
  3. Step 3: Cross multiply
    439,246.20x = 659,646.90 × 339,648.60
  4. Step 4: Simplify right side
    439,246.20x = 224,048,146,079.34
  5. Step 5: Solve for x
    x = 224,048,146,079.34/439,246.20
  6. Step 6: Final answer
    x = 510,074.18

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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.