Home / 1,568,065.31-2,161,639.63-1,108,368.84

Finding the Fourth Proportional to 1,568,065.31, 2,161,639.63 and 1,108,368.84

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Solution

The fourth proportional to 1,568,065.31, 2,161,639.63 and 1,108,368.84 is: 1,527,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568,065.31 : 2,161,639.63 = 1,108,368.84 : x
  2. Step 2: Convert to fraction form
    1,568,065.31/2,161,639.63 = 1,108,368.84/x
  3. Step 3: Cross multiply
    1,568,065.31x = 2,161,639.63 × 1,108,368.84
  4. Step 4: Simplify right side
    1,568,065.31x = 2,395,894,006,430.21
  5. Step 5: Solve for x
    x = 2,395,894,006,430.21/1,568,065.31
  6. Step 6: Final answer
    x = 1,527,929.99

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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.