Home / 1,174,912-1,621,380.18-665,648.80

Finding the Fourth Proportional to 1,174,912, 1,621,380.18 and 665,648.80

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Solution

The fourth proportional to 1,174,912, 1,621,380.18 and 665,648.80 is: 918,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,912 : 1,621,380.18 = 665,648.80 : x
  2. Step 2: Convert to fraction form
    1,174,912/1,621,380.18 = 665,648.80/x
  3. Step 3: Cross multiply
    1,174,912x = 1,621,380.18 × 665,648.80
  4. Step 4: Simplify right side
    1,174,912x = 1,079,269,771,160.78
  5. Step 5: Solve for x
    x = 1,079,269,771,160.78/1,174,912
  6. Step 6: Final answer
    x = 918,596.26

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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.