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Finding the Fourth Proportional to 550,726.80, 826,090.20 and 298,784.40

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Solution

The fourth proportional to 550,726.80, 826,090.20 and 298,784.40 is: 448,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,726.80 : 826,090.20 = 298,784.40 : x
  2. Step 2: Convert to fraction form
    550,726.80/826,090.20 = 298,784.40/x
  3. Step 3: Cross multiply
    550,726.80x = 826,090.20 × 298,784.40
  4. Step 4: Simplify right side
    550,726.80x = 246,822,864,752.88
  5. Step 5: Solve for x
    x = 246,822,864,752.88/550,726.80
  6. Step 6: Final answer
    x = 448,176.60

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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.