Home / 1,689,932.80-2,535,820.80-692,761.60

Finding the Fourth Proportional to 1,689,932.80, 2,535,820.80 and 692,761.60

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Solution

The fourth proportional to 1,689,932.80, 2,535,820.80 and 692,761.60 is: 1,039,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,932.80 : 2,535,820.80 = 692,761.60 : x
  2. Step 2: Convert to fraction form
    1,689,932.80/2,535,820.80 = 692,761.60/x
  3. Step 3: Cross multiply
    1,689,932.80x = 2,535,820.80 × 692,761.60
  4. Step 4: Simplify right side
    1,689,932.80x = 1,756,719,274,721.28
  5. Step 5: Solve for x
    x = 1,756,719,274,721.28/1,689,932.80
  6. Step 6: Final answer
    x = 1,039,520.20

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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.