Home / 1,295,410.52-1,787,689.50-722,389.16

Finding the Fourth Proportional to 1,295,410.52, 1,787,689.50 and 722,389.16

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Solution

The fourth proportional to 1,295,410.52, 1,787,689.50 and 722,389.16 is: 996,909.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,410.52 : 1,787,689.50 = 722,389.16 : x
  2. Step 2: Convert to fraction form
    1,295,410.52/1,787,689.50 = 722,389.16/x
  3. Step 3: Cross multiply
    1,295,410.52x = 1,787,689.50 × 722,389.16
  4. Step 4: Simplify right side
    1,295,410.52x = 1,291,407,516,245.82
  5. Step 5: Solve for x
    x = 1,291,407,516,245.82/1,295,410.52
  6. Step 6: Final answer
    x = 996,909.86

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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.