Home / 547,659.20-821,488.80-153,675.20

Finding the Fourth Proportional to 547,659.20, 821,488.80 and 153,675.20

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Solution

The fourth proportional to 547,659.20, 821,488.80 and 153,675.20 is: 230,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,659.20 : 821,488.80 = 153,675.20 : x
  2. Step 2: Convert to fraction form
    547,659.20/821,488.80 = 153,675.20/x
  3. Step 3: Cross multiply
    547,659.20x = 821,488.80 × 153,675.20
  4. Step 4: Simplify right side
    547,659.20x = 126,242,455,637.76
  5. Step 5: Solve for x
    x = 126,242,455,637.76/547,659.20
  6. Step 6: Final answer
    x = 230,512.80

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Similar ratio
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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.