Home / 1,257,240.25-1,734,991.55-684,284.52

Finding the Fourth Proportional to 1,257,240.25, 1,734,991.55 and 684,284.52

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Solution

The fourth proportional to 1,257,240.25, 1,734,991.55 and 684,284.52 is: 944,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,240.25 : 1,734,991.55 = 684,284.52 : x
  2. Step 2: Convert to fraction form
    1,257,240.25/1,734,991.55 = 684,284.52/x
  3. Step 3: Cross multiply
    1,257,240.25x = 1,734,991.55 × 684,284.52
  4. Step 4: Simplify right side
    1,257,240.25x = 1,187,227,859,995.81
  5. Step 5: Solve for x
    x = 1,187,227,859,995.81/1,257,240.25
  6. Step 6: Final answer
    x = 944,312.64

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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.