Home / 1,262,405.45-1,742,121.47-718,541.23

Finding the Fourth Proportional to 1,262,405.45, 1,742,121.47 and 718,541.23

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Solution

The fourth proportional to 1,262,405.45, 1,742,121.47 and 718,541.23 is: 991,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,405.45 : 1,742,121.47 = 718,541.23 : x
  2. Step 2: Convert to fraction form
    1,262,405.45/1,742,121.47 = 718,541.23/x
  3. Step 3: Cross multiply
    1,262,405.45x = 1,742,121.47 × 718,541.23
  4. Step 4: Simplify right side
    1,262,405.45x = 1,251,786,103,863.21
  5. Step 5: Solve for x
    x = 1,251,786,103,863.21/1,262,405.45
  6. Step 6: Final answer
    x = 991,588.01

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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.