Home / 1,189,902.96-1,785,075.87-391,216.03

Finding the Fourth Proportional to 1,189,902.96, 1,785,075.87 and 391,216.03

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Solution

The fourth proportional to 1,189,902.96, 1,785,075.87 and 391,216.03 is: 586,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,902.96 : 1,785,075.87 = 391,216.03 : x
  2. Step 2: Convert to fraction form
    1,189,902.96/1,785,075.87 = 391,216.03/x
  3. Step 3: Cross multiply
    1,189,902.96x = 1,785,075.87 × 391,216.03
  4. Step 4: Simplify right side
    1,189,902.96x = 698,350,292,114.57
  5. Step 5: Solve for x
    x = 698,350,292,114.57/1,189,902.96
  6. Step 6: Final answer
    x = 586,896.84

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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.