Home / 1,289,013.54-1,778,889.16-881,969.10

Finding the Fourth Proportional to 1,289,013.54, 1,778,889.16 and 881,969.10

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Solution

The fourth proportional to 1,289,013.54, 1,778,889.16 and 881,969.10 is: 1,217,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,013.54 : 1,778,889.16 = 881,969.10 : x
  2. Step 2: Convert to fraction form
    1,289,013.54/1,778,889.16 = 881,969.10/x
  3. Step 3: Cross multiply
    1,289,013.54x = 1,778,889.16 × 881,969.10
  4. Step 4: Simplify right side
    1,289,013.54x = 1,568,925,271,444.96
  5. Step 5: Solve for x
    x = 1,568,925,271,444.96/1,289,013.54
  6. Step 6: Final answer
    x = 1,217,151.89

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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.