Home / 1,792,418.78-2,689,869.90-712,820.75

Finding the Fourth Proportional to 1,792,418.78, 2,689,869.90 and 712,820.75

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Solution

The fourth proportional to 1,792,418.78, 2,689,869.90 and 712,820.75 is: 1,069,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,418.78 : 2,689,869.90 = 712,820.75 : x
  2. Step 2: Convert to fraction form
    1,792,418.78/2,689,869.90 = 712,820.75/x
  3. Step 3: Cross multiply
    1,792,418.78x = 2,689,869.90 × 712,820.75
  4. Step 4: Simplify right side
    1,792,418.78x = 1,917,395,066,071.08
  5. Step 5: Solve for x
    x = 1,917,395,066,071.08/1,792,418.78
  6. Step 6: Final answer
    x = 1,069,724.94

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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.