Home / 439,830.20-659,745.30-334,854.20

Finding the Fourth Proportional to 439,830.20, 659,745.30 and 334,854.20

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Solution

The fourth proportional to 439,830.20, 659,745.30 and 334,854.20 is: 502,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,830.20 : 659,745.30 = 334,854.20 : x
  2. Step 2: Convert to fraction form
    439,830.20/659,745.30 = 334,854.20/x
  3. Step 3: Cross multiply
    439,830.20x = 659,745.30 × 334,854.20
  4. Step 4: Simplify right side
    439,830.20x = 220,918,484,635.26
  5. Step 5: Solve for x
    x = 220,918,484,635.26/439,830.20
  6. Step 6: Final answer
    x = 502,281.30

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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.