Home / 547,177.75-820,092.70-388,547.35

Finding the Fourth Proportional to 547,177.75, 820,092.70 and 388,547.35

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Solution

The fourth proportional to 547,177.75, 820,092.70 and 388,547.35 is: 582,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,177.75 : 820,092.70 = 388,547.35 : x
  2. Step 2: Convert to fraction form
    547,177.75/820,092.70 = 388,547.35/x
  3. Step 3: Cross multiply
    547,177.75x = 820,092.70 × 388,547.35
  4. Step 4: Simplify right side
    547,177.75x = 318,644,845,339.35
  5. Step 5: Solve for x
    x = 318,644,845,339.35/547,177.75
  6. Step 6: Final answer
    x = 582,342.48

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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.