Home / 1,313,412.80-1,969,973.40-366,879.20

Finding the Fourth Proportional to 1,313,412.80, 1,969,973.40 and 366,879.20

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Solution

The fourth proportional to 1,313,412.80, 1,969,973.40 and 366,879.20 is: 550,278.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,412.80 : 1,969,973.40 = 366,879.20 : x
  2. Step 2: Convert to fraction form
    1,313,412.80/1,969,973.40 = 366,879.20/x
  3. Step 3: Cross multiply
    1,313,412.80x = 1,969,973.40 × 366,879.20
  4. Step 4: Simplify right side
    1,313,412.80x = 722,742,265,013.28
  5. Step 5: Solve for x
    x = 722,742,265,013.28/1,313,412.80
  6. Step 6: Final answer
    x = 550,278.07

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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.