Home / 1,390,334.70-2,085,502.05-965,181.90

Finding the Fourth Proportional to 1,390,334.70, 2,085,502.05 and 965,181.90

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Solution

The fourth proportional to 1,390,334.70, 2,085,502.05 and 965,181.90 is: 1,447,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,334.70 : 2,085,502.05 = 965,181.90 : x
  2. Step 2: Convert to fraction form
    1,390,334.70/2,085,502.05 = 965,181.90/x
  3. Step 3: Cross multiply
    1,390,334.70x = 2,085,502.05 × 965,181.90
  4. Step 4: Simplify right side
    1,390,334.70x = 2,012,888,831,072.90
  5. Step 5: Solve for x
    x = 2,012,888,831,072.90/1,390,334.70
  6. Step 6: Final answer
    x = 1,447,772.85

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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.