Home / 1,377,173.95-1,900,546.20-765,352.50

Finding the Fourth Proportional to 1,377,173.95, 1,900,546.20 and 765,352.50

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Solution

The fourth proportional to 1,377,173.95, 1,900,546.20 and 765,352.50 is: 1,056,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,173.95 : 1,900,546.20 = 765,352.50 : x
  2. Step 2: Convert to fraction form
    1,377,173.95/1,900,546.20 = 765,352.50/x
  3. Step 3: Cross multiply
    1,377,173.95x = 1,900,546.20 × 765,352.50
  4. Step 4: Simplify right side
    1,377,173.95x = 1,454,587,778,408.45
  5. Step 5: Solve for x
    x = 1,454,587,778,408.45/1,377,173.95
  6. Step 6: Final answer
    x = 1,056,212.09

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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.