Home / 776,239.20-1,164,408.21-243,781.25

Finding the Fourth Proportional to 776,239.20, 1,164,408.21 and 243,781.25

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Solution

The fourth proportional to 776,239.20, 1,164,408.21 and 243,781.25 is: 365,687.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,239.20 : 1,164,408.21 = 243,781.25 : x
  2. Step 2: Convert to fraction form
    776,239.20/1,164,408.21 = 243,781.25/x
  3. Step 3: Cross multiply
    776,239.20x = 1,164,408.21 × 243,781.25
  4. Step 4: Simplify right side
    776,239.20x = 283,860,883,122.02
  5. Step 5: Solve for x
    x = 283,860,883,122.02/776,239.20
  6. Step 6: Final answer
    x = 365,687.38

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1.5x scale

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.