Home / 850,634.10-1,275,951.15-429,855.30

Finding the Fourth Proportional to 850,634.10, 1,275,951.15 and 429,855.30

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Solution

The fourth proportional to 850,634.10, 1,275,951.15 and 429,855.30 is: 644,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,634.10 : 1,275,951.15 = 429,855.30 : x
  2. Step 2: Convert to fraction form
    850,634.10/1,275,951.15 = 429,855.30/x
  3. Step 3: Cross multiply
    850,634.10x = 1,275,951.15 × 429,855.30
  4. Step 4: Simplify right side
    850,634.10x = 548,474,364,368.60
  5. Step 5: Solve for x
    x = 548,474,364,368.60/850,634.10
  6. Step 6: Final answer
    x = 644,782.95

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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.