Home / 1,298,044.58-1,791,140.52-725,192.78

Finding the Fourth Proportional to 1,298,044.58, 1,791,140.52 and 725,192.78

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Solution

The fourth proportional to 1,298,044.58, 1,791,140.52 and 725,192.78 is: 1,000,676.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,044.58 : 1,791,140.52 = 725,192.78 : x
  2. Step 2: Convert to fraction form
    1,298,044.58/1,791,140.52 = 725,192.78/x
  3. Step 3: Cross multiply
    1,298,044.58x = 1,791,140.52 × 725,192.78
  4. Step 4: Simplify right side
    1,298,044.58x = 1,298,922,173,069.45
  5. Step 5: Solve for x
    x = 1,298,922,173,069.45/1,298,044.58
  6. Step 6: Final answer
    x = 1,000,676.09

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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.