Home / 1,288,035.38-1,777,409.24-707,256.21

Finding the Fourth Proportional to 1,288,035.38, 1,777,409.24 and 707,256.21

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Solution

The fourth proportional to 1,288,035.38, 1,777,409.24 and 707,256.21 is: 975,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,035.38 : 1,777,409.24 = 707,256.21 : x
  2. Step 2: Convert to fraction form
    1,288,035.38/1,777,409.24 = 707,256.21/x
  3. Step 3: Cross multiply
    1,288,035.38x = 1,777,409.24 × 707,256.21
  4. Step 4: Simplify right side
    1,288,035.38x = 1,257,083,725,376.76
  5. Step 5: Solve for x
    x = 1,257,083,725,376.76/1,288,035.38
  6. Step 6: Final answer
    x = 975,969.88

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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.