Home / 1,137,238.92-1,568,823.39-678,030.21

Finding the Fourth Proportional to 1,137,238.92, 1,568,823.39 and 678,030.21

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Solution

The fourth proportional to 1,137,238.92, 1,568,823.39 and 678,030.21 is: 935,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,238.92 : 1,568,823.39 = 678,030.21 : x
  2. Step 2: Convert to fraction form
    1,137,238.92/1,568,823.39 = 678,030.21/x
  3. Step 3: Cross multiply
    1,137,238.92x = 1,568,823.39 × 678,030.21
  4. Step 4: Simplify right side
    1,137,238.92x = 1,063,709,652,574.61
  5. Step 5: Solve for x
    x = 1,063,709,652,574.61/1,137,238.92
  6. Step 6: Final answer
    x = 935,344.05

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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.