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Finding the Fourth Proportional to 576,905.20, 865,357.80 and 202,879.60

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Solution

The fourth proportional to 576,905.20, 865,357.80 and 202,879.60 is: 304,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,905.20 : 865,357.80 = 202,879.60 : x
  2. Step 2: Convert to fraction form
    576,905.20/865,357.80 = 202,879.60/x
  3. Step 3: Cross multiply
    576,905.20x = 865,357.80 × 202,879.60
  4. Step 4: Simplify right side
    576,905.20x = 175,563,444,320.88
  5. Step 5: Solve for x
    x = 175,563,444,320.88/576,905.20
  6. Step 6: Final answer
    x = 304,319.40

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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.