Home / 539,928.72-745,197.03-310,467.87

Finding the Fourth Proportional to 539,928.72, 745,197.03 and 310,467.87

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Solution

The fourth proportional to 539,928.72, 745,197.03 and 310,467.87 is: 428,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,928.72 : 745,197.03 = 310,467.87 : x
  2. Step 2: Convert to fraction form
    539,928.72/745,197.03 = 310,467.87/x
  3. Step 3: Cross multiply
    539,928.72x = 745,197.03 × 310,467.87
  4. Step 4: Simplify right side
    539,928.72x = 231,359,734,634.43
  5. Step 5: Solve for x
    x = 231,359,734,634.43/539,928.72
  6. Step 6: Final answer
    x = 428,500.52

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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.