Home / 850,308.85-1,173,438.88-463,142.12

Finding the Fourth Proportional to 850,308.85, 1,173,438.88 and 463,142.12

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Solution

The fourth proportional to 850,308.85, 1,173,438.88 and 463,142.12 is: 639,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,308.85 : 1,173,438.88 = 463,142.12 : x
  2. Step 2: Convert to fraction form
    850,308.85/1,173,438.88 = 463,142.12/x
  3. Step 3: Cross multiply
    850,308.85x = 1,173,438.88 × 463,142.12
  4. Step 4: Simplify right side
    850,308.85x = 543,468,970,573.63
  5. Step 5: Solve for x
    x = 543,468,970,573.63/850,308.85
  6. Step 6: Final answer
    x = 639,143.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.