Home / 1,257,280.80-1,735,086.60-684,359.52

Finding the Fourth Proportional to 1,257,280.80, 1,735,086.60 and 684,359.52

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Solution

The fourth proportional to 1,257,280.80, 1,735,086.60 and 684,359.52 is: 944,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,280.80 : 1,735,086.60 = 684,359.52 : x
  2. Step 2: Convert to fraction form
    1,257,280.80/1,735,086.60 = 684,359.52/x
  3. Step 3: Cross multiply
    1,257,280.80x = 1,735,086.60 × 684,359.52
  4. Step 4: Simplify right side
    1,257,280.80x = 1,187,423,032,734.43
  5. Step 5: Solve for x
    x = 1,187,423,032,734.43/1,257,280.80
  6. Step 6: Final answer
    x = 944,437.42

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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.