Home / 1,188,398.55-1,782,767.25-389,742.60

Finding the Fourth Proportional to 1,188,398.55, 1,782,767.25 and 389,742.60

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Solution

The fourth proportional to 1,188,398.55, 1,782,767.25 and 389,742.60 is: 584,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,398.55 : 1,782,767.25 = 389,742.60 : x
  2. Step 2: Convert to fraction form
    1,188,398.55/1,782,767.25 = 389,742.60/x
  3. Step 3: Cross multiply
    1,188,398.55x = 1,782,767.25 × 389,742.60
  4. Step 4: Simplify right side
    1,188,398.55x = 694,820,343,209.85
  5. Step 5: Solve for x
    x = 694,820,343,209.85/1,188,398.55
  6. Step 6: Final answer
    x = 584,669.46

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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.