Home / 1,742,378.88-2,404,473.60-978,499.20

Finding the Fourth Proportional to 1,742,378.88, 2,404,473.60 and 978,499.20

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Solution

The fourth proportional to 1,742,378.88, 2,404,473.60 and 978,499.20 is: 1,350,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742,378.88 : 2,404,473.60 = 978,499.20 : x
  2. Step 2: Convert to fraction form
    1,742,378.88/2,404,473.60 = 978,499.20/x
  3. Step 3: Cross multiply
    1,742,378.88x = 2,404,473.60 × 978,499.20
  4. Step 4: Simplify right side
    1,742,378.88x = 2,352,775,494,021.12
  5. Step 5: Solve for x
    x = 2,352,775,494,021.12/1,742,378.88
  6. Step 6: Final answer
    x = 1,350,323.70

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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.