Home / 1,189,822.68-1,785,388.86-515,909.16

Finding the Fourth Proportional to 1,189,822.68, 1,785,388.86 and 515,909.16

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Solution

The fourth proportional to 1,189,822.68, 1,785,388.86 and 515,909.16 is: 774,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,822.68 : 1,785,388.86 = 515,909.16 : x
  2. Step 2: Convert to fraction form
    1,189,822.68/1,785,388.86 = 515,909.16/x
  3. Step 3: Cross multiply
    1,189,822.68x = 1,785,388.86 × 515,909.16
  4. Step 4: Simplify right side
    1,189,822.68x = 921,098,467,035.96
  5. Step 5: Solve for x
    x = 921,098,467,035.96/1,189,822.68
  6. Step 6: Final answer
    x = 774,147.68

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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.