Home / 1,556,428.80-2,148,940.80-1,174,886.40

Finding the Fourth Proportional to 1,556,428.80, 2,148,940.80 and 1,174,886.40

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Solution

The fourth proportional to 1,556,428.80, 2,148,940.80 and 1,174,886.40 is: 1,622,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,428.80 : 2,148,940.80 = 1,174,886.40 : x
  2. Step 2: Convert to fraction form
    1,556,428.80/2,148,940.80 = 1,174,886.40/x
  3. Step 3: Cross multiply
    1,556,428.80x = 2,148,940.80 × 1,174,886.40
  4. Step 4: Simplify right side
    1,556,428.80x = 2,524,761,320,325.12
  5. Step 5: Solve for x
    x = 2,524,761,320,325.12/1,556,428.80
  6. Step 6: Final answer
    x = 1,622,150.22

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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.