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Finding the Fourth Proportional to 507,652.80, 761,479.20 and 133,713.60

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Solution

The fourth proportional to 507,652.80, 761,479.20 and 133,713.60 is: 200,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,652.80 : 761,479.20 = 133,713.60 : x
  2. Step 2: Convert to fraction form
    507,652.80/761,479.20 = 133,713.60/x
  3. Step 3: Cross multiply
    507,652.80x = 761,479.20 × 133,713.60
  4. Step 4: Simplify right side
    507,652.80x = 101,820,125,157.12
  5. Step 5: Solve for x
    x = 101,820,125,157.12/507,652.80
  6. Step 6: Final answer
    x = 200,570.40

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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.