Home / 889,138.48-1,226,998.70-507,171.64

Finding the Fourth Proportional to 889,138.48, 1,226,998.70 and 507,171.64

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Solution

The fourth proportional to 889,138.48, 1,226,998.70 and 507,171.64 is: 699,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,138.48 : 1,226,998.70 = 507,171.64 : x
  2. Step 2: Convert to fraction form
    889,138.48/1,226,998.70 = 507,171.64/x
  3. Step 3: Cross multiply
    889,138.48x = 1,226,998.70 × 507,171.64
  4. Step 4: Simplify right side
    889,138.48x = 622,298,942,956.87
  5. Step 5: Solve for x
    x = 622,298,942,956.87/889,138.48
  6. Step 6: Final answer
    x = 699,889.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.