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Finding the Fourth Proportional to 626,518.44, 940,173 and 266,688.72

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Solution

The fourth proportional to 626,518.44, 940,173 and 266,688.72 is: 400,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,518.44 : 940,173 = 266,688.72 : x
  2. Step 2: Convert to fraction form
    626,518.44/940,173 = 266,688.72/x
  3. Step 3: Cross multiply
    626,518.44x = 940,173 × 266,688.72
  4. Step 4: Simplify right side
    626,518.44x = 250,733,533,948.56
  5. Step 5: Solve for x
    x = 250,733,533,948.56/626,518.44
  6. Step 6: Final answer
    x = 400,201.36

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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.