Home / 1,257,422.40-1,735,214.40-684,460.80

Finding the Fourth Proportional to 1,257,422.40, 1,735,214.40 and 684,460.80

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Solution

The fourth proportional to 1,257,422.40, 1,735,214.40 and 684,460.80 is: 944,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,422.40 : 1,735,214.40 = 684,460.80 : x
  2. Step 2: Convert to fraction form
    1,257,422.40/1,735,214.40 = 684,460.80/x
  3. Step 3: Cross multiply
    1,257,422.40x = 1,735,214.40 × 684,460.80
  4. Step 4: Simplify right side
    1,257,422.40x = 1,187,686,236,395.52
  5. Step 5: Solve for x
    x = 1,187,686,236,395.52/1,257,422.40
  6. Step 6: Final answer
    x = 944,540.38

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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.