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Finding the Fourth Proportional to 576,409.40, 864,614.10 and 202,432.40

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Solution

The fourth proportional to 576,409.40, 864,614.10 and 202,432.40 is: 303,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,409.40 : 864,614.10 = 202,432.40 : x
  2. Step 2: Convert to fraction form
    576,409.40/864,614.10 = 202,432.40/x
  3. Step 3: Cross multiply
    576,409.40x = 864,614.10 × 202,432.40
  4. Step 4: Simplify right side
    576,409.40x = 175,025,907,336.84
  5. Step 5: Solve for x
    x = 175,025,907,336.84/576,409.40
  6. Step 6: Final answer
    x = 303,648.60

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Double scale
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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.