Home / 547,800.84-821,789.55-168,721.47

Finding the Fourth Proportional to 547,800.84, 821,789.55 and 168,721.47

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Solution

The fourth proportional to 547,800.84, 821,789.55 and 168,721.47 is: 253,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,800.84 : 821,789.55 = 168,721.47 : x
  2. Step 2: Convert to fraction form
    547,800.84/821,789.55 = 168,721.47/x
  3. Step 3: Cross multiply
    547,800.84x = 821,789.55 × 168,721.47
  4. Step 4: Simplify right side
    547,800.84x = 138,653,540,906.64
  5. Step 5: Solve for x
    x = 138,653,540,906.64/547,800.84
  6. Step 6: Final answer
    x = 253,109.40

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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.