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Finding the Fourth Proportional to 507,382.59, 761,109.39 and 203,776.77

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Solution

The fourth proportional to 507,382.59, 761,109.39 and 203,776.77 is: 305,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,382.59 : 761,109.39 = 203,776.77 : x
  2. Step 2: Convert to fraction form
    507,382.59/761,109.39 = 203,776.77/x
  3. Step 3: Cross multiply
    507,382.59x = 761,109.39 × 203,776.77
  4. Step 4: Simplify right side
    507,382.59x = 155,096,413,110.87
  5. Step 5: Solve for x
    x = 155,096,413,110.87/507,382.59
  6. Step 6: Final answer
    x = 305,679.41

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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.