Home / 743,527.20-1,114,059.60-427,432.80

Finding the Fourth Proportional to 743,527.20, 1,114,059.60 and 427,432.80

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Solution

The fourth proportional to 743,527.20, 1,114,059.60 and 427,432.80 is: 640,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,527.20 : 1,114,059.60 = 427,432.80 : x
  2. Step 2: Convert to fraction form
    743,527.20/1,114,059.60 = 427,432.80/x
  3. Step 3: Cross multiply
    743,527.20x = 1,114,059.60 × 427,432.80
  4. Step 4: Simplify right side
    743,527.20x = 476,185,614,194.88
  5. Step 5: Solve for x
    x = 476,185,614,194.88/743,527.20
  6. Step 6: Final answer
    x = 640,441.42

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Double scale
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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.