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Finding the Fourth Proportional to 507,656.40, 761,410.80 and 133,679.04

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Solution

The fourth proportional to 507,656.40, 761,410.80 and 133,679.04 is: 200,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,656.40 : 761,410.80 = 133,679.04 : x
  2. Step 2: Convert to fraction form
    507,656.40/761,410.80 = 133,679.04/x
  3. Step 3: Cross multiply
    507,656.40x = 761,410.80 × 133,679.04
  4. Step 4: Simplify right side
    507,656.40x = 101,784,664,789.63
  5. Step 5: Solve for x
    x = 101,784,664,789.63/507,656.40
  6. Step 6: Final answer
    x = 200,499.13

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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.