Home / 919,073.92-1,269,288.96-818,886.40

Finding the Fourth Proportional to 919,073.92, 1,269,288.96 and 818,886.40

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Solution

The fourth proportional to 919,073.92, 1,269,288.96 and 818,886.40 is: 1,130,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,073.92 : 1,269,288.96 = 818,886.40 : x
  2. Step 2: Convert to fraction form
    919,073.92/1,269,288.96 = 818,886.40/x
  3. Step 3: Cross multiply
    919,073.92x = 1,269,288.96 × 818,886.40
  4. Step 4: Simplify right side
    919,073.92x = 1,039,403,467,014.14
  5. Step 5: Solve for x
    x = 1,039,403,467,014.14/919,073.92
  6. Step 6: Final answer
    x = 1,130,924.78

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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.