Home / 1,781,700.40-2,672,896.20-770,820.40

Finding the Fourth Proportional to 1,781,700.40, 2,672,896.20 and 770,820.40

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Solution

The fourth proportional to 1,781,700.40, 2,672,896.20 and 770,820.40 is: 1,156,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,700.40 : 2,672,896.20 = 770,820.40 : x
  2. Step 2: Convert to fraction form
    1,781,700.40/2,672,896.20 = 770,820.40/x
  3. Step 3: Cross multiply
    1,781,700.40x = 2,672,896.20 × 770,820.40
  4. Step 4: Simplify right side
    1,781,700.40x = 2,060,322,918,042.48
  5. Step 5: Solve for x
    x = 2,060,322,918,042.48/1,781,700.40
  6. Step 6: Final answer
    x = 1,156,380.12

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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.