Home / 1,189,832.79-1,785,056.74-515,758.39

Finding the Fourth Proportional to 1,189,832.79, 1,785,056.74 and 515,758.39

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Solution

The fourth proportional to 1,189,832.79, 1,785,056.74 and 515,758.39 is: 773,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,832.79 : 1,785,056.74 = 515,758.39 : x
  2. Step 2: Convert to fraction form
    1,189,832.79/1,785,056.74 = 515,758.39/x
  3. Step 3: Cross multiply
    1,189,832.79x = 1,785,056.74 × 515,758.39
  4. Step 4: Simplify right side
    1,189,832.79x = 920,657,984,529.01
  5. Step 5: Solve for x
    x = 920,657,984,529.01/1,189,832.79
  6. Step 6: Final answer
    x = 773,770.89

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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.