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Finding the Fourth Proportional to 548,981.52, 756,992.89 and 357,640.08

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Solution

The fourth proportional to 548,981.52, 756,992.89 and 357,640.08 is: 493,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,981.52 : 756,992.89 = 357,640.08 : x
  2. Step 2: Convert to fraction form
    548,981.52/756,992.89 = 357,640.08/x
  3. Step 3: Cross multiply
    548,981.52x = 756,992.89 × 357,640.08
  4. Step 4: Simplify right side
    548,981.52x = 270,730,997,739.03
  5. Step 5: Solve for x
    x = 270,730,997,739.03/548,981.52
  6. Step 6: Final answer
    x = 493,151.39

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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.