Home / 1,401,912.95-1,934,679.72-781,732.40

Finding the Fourth Proportional to 1,401,912.95, 1,934,679.72 and 781,732.40

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Solution

The fourth proportional to 1,401,912.95, 1,934,679.72 and 781,732.40 is: 1,078,812.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,912.95 : 1,934,679.72 = 781,732.40 : x
  2. Step 2: Convert to fraction form
    1,401,912.95/1,934,679.72 = 781,732.40/x
  3. Step 3: Cross multiply
    1,401,912.95x = 1,934,679.72 × 781,732.40
  4. Step 4: Simplify right side
    1,401,912.95x = 1,512,401,818,792.60
  5. Step 5: Solve for x
    x = 1,512,401,818,792.60/1,401,912.95
  6. Step 6: Final answer
    x = 1,078,812.93

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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.