Home / 1,792,419.78-2,689,871.40-712,821.75

Finding the Fourth Proportional to 1,792,419.78, 2,689,871.40 and 712,821.75

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Solution

The fourth proportional to 1,792,419.78, 2,689,871.40 and 712,821.75 is: 1,069,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,419.78 : 2,689,871.40 = 712,821.75 : x
  2. Step 2: Convert to fraction form
    1,792,419.78/2,689,871.40 = 712,821.75/x
  3. Step 3: Cross multiply
    1,792,419.78x = 2,689,871.40 × 712,821.75
  4. Step 4: Simplify right side
    1,792,419.78x = 1,917,398,838,622.95
  5. Step 5: Solve for x
    x = 1,917,398,838,622.95/1,792,419.78
  6. Step 6: Final answer
    x = 1,069,726.44

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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.