Home / 738,131.20-1,107,715.20-472,537.60

Finding the Fourth Proportional to 738,131.20, 1,107,715.20 and 472,537.60

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Solution

The fourth proportional to 738,131.20, 1,107,715.20 and 472,537.60 is: 709,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,131.20 : 1,107,715.20 = 472,537.60 : x
  2. Step 2: Convert to fraction form
    738,131.20/1,107,715.20 = 472,537.60/x
  3. Step 3: Cross multiply
    738,131.20x = 1,107,715.20 × 472,537.60
  4. Step 4: Simplify right side
    738,131.20x = 523,437,082,091.52
  5. Step 5: Solve for x
    x = 523,437,082,091.52/738,131.20
  6. Step 6: Final answer
    x = 709,138.27

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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.