Home / 1,257,540-1,731,562.16-947,892.40

Finding the Fourth Proportional to 1,257,540, 1,731,562.16 and 947,892.40

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Solution

The fourth proportional to 1,257,540, 1,731,562.16 and 947,892.40 is: 1,305,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,540 : 1,731,562.16 = 947,892.40 : x
  2. Step 2: Convert to fraction form
    1,257,540/1,731,562.16 = 947,892.40/x
  3. Step 3: Cross multiply
    1,257,540x = 1,731,562.16 × 947,892.40
  4. Step 4: Simplify right side
    1,257,540x = 1,641,334,611,591.58
  5. Step 5: Solve for x
    x = 1,641,334,611,591.58/1,257,540
  6. Step 6: Final answer
    x = 1,305,194.75

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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.