Home / 1,289,031.58-1,778,914.02-881,987.14

Finding the Fourth Proportional to 1,289,031.58, 1,778,914.02 and 881,987.14

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Solution

The fourth proportional to 1,289,031.58, 1,778,914.02 and 881,987.14 is: 1,217,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,031.58 : 1,778,914.02 = 881,987.14 : x
  2. Step 2: Convert to fraction form
    1,289,031.58/1,778,914.02 = 881,987.14/x
  3. Step 3: Cross multiply
    1,289,031.58x = 1,778,914.02 × 881,987.14
  4. Step 4: Simplify right side
    1,289,031.58x = 1,568,979,288,805.70
  5. Step 5: Solve for x
    x = 1,568,979,288,805.70/1,289,031.58
  6. Step 6: Final answer
    x = 1,217,176.77

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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.