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Finding the Fourth Proportional to 576,004.40, 864,006.60 and 408,042.80

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Solution

The fourth proportional to 576,004.40, 864,006.60 and 408,042.80 is: 612,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,004.40 : 864,006.60 = 408,042.80 : x
  2. Step 2: Convert to fraction form
    576,004.40/864,006.60 = 408,042.80/x
  3. Step 3: Cross multiply
    576,004.40x = 864,006.60 × 408,042.80
  4. Step 4: Simplify right side
    576,004.40x = 352,551,672,282.48
  5. Step 5: Solve for x
    x = 352,551,672,282.48/576,004.40
  6. Step 6: Final answer
    x = 612,064.20

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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.