Home / 1,257,288.52-1,735,095.78-774,132.42

Finding the Fourth Proportional to 1,257,288.52, 1,735,095.78 and 774,132.42

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Solution

The fourth proportional to 1,257,288.52, 1,735,095.78 and 774,132.42 is: 1,068,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,288.52 : 1,735,095.78 = 774,132.42 : x
  2. Step 2: Convert to fraction form
    1,257,288.52/1,735,095.78 = 774,132.42/x
  3. Step 3: Cross multiply
    1,257,288.52x = 1,735,095.78 × 774,132.42
  4. Step 4: Simplify right side
    1,257,288.52x = 1,343,193,895,103.19
  5. Step 5: Solve for x
    x = 1,343,193,895,103.19/1,257,288.52
  6. Step 6: Final answer
    x = 1,068,325.90

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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.