Home / 1,368,124.40-1,888,373.24-787,419

Finding the Fourth Proportional to 1,368,124.40, 1,888,373.24 and 787,419

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Solution

The fourth proportional to 1,368,124.40, 1,888,373.24 and 787,419 is: 1,086,846.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,124.40 : 1,888,373.24 = 787,419 : x
  2. Step 2: Convert to fraction form
    1,368,124.40/1,888,373.24 = 787,419/x
  3. Step 3: Cross multiply
    1,368,124.40x = 1,888,373.24 × 787,419
  4. Step 4: Simplify right side
    1,368,124.40x = 1,486,940,968,267.56
  5. Step 5: Solve for x
    x = 1,486,940,968,267.56/1,368,124.40
  6. Step 6: Final answer
    x = 1,086,846.32

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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.