Home / 1,200,689.52-1,657,028.52-691,380.96

Finding the Fourth Proportional to 1,200,689.52, 1,657,028.52 and 691,380.96

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Solution

The fourth proportional to 1,200,689.52, 1,657,028.52 and 691,380.96 is: 954,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,689.52 : 1,657,028.52 = 691,380.96 : x
  2. Step 2: Convert to fraction form
    1,200,689.52/1,657,028.52 = 691,380.96/x
  3. Step 3: Cross multiply
    1,200,689.52x = 1,657,028.52 × 691,380.96
  4. Step 4: Simplify right side
    1,200,689.52x = 1,145,637,968,904.98
  5. Step 5: Solve for x
    x = 1,145,637,968,904.98/1,200,689.52
  6. Step 6: Final answer
    x = 954,150.05

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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.