Home / 395,247.57-545,073.21-365,890.74

Finding the Fourth Proportional to 395,247.57, 545,073.21 and 365,890.74

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Solution

The fourth proportional to 395,247.57, 545,073.21 and 365,890.74 is: 504,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,247.57 : 545,073.21 = 365,890.74 : x
  2. Step 2: Convert to fraction form
    395,247.57/545,073.21 = 365,890.74/x
  3. Step 3: Cross multiply
    395,247.57x = 545,073.21 × 365,890.74
  4. Step 4: Simplify right side
    395,247.57x = 199,437,240,161.08
  5. Step 5: Solve for x
    x = 199,437,240,161.08/395,247.57
  6. Step 6: Final answer
    x = 504,588.15

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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.