Home / 1,295,409.52-1,787,688.12-722,388.16

Finding the Fourth Proportional to 1,295,409.52, 1,787,688.12 and 722,388.16

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Solution

The fourth proportional to 1,295,409.52, 1,787,688.12 and 722,388.16 is: 996,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,409.52 : 1,787,688.12 = 722,388.16 : x
  2. Step 2: Convert to fraction form
    1,295,409.52/1,787,688.12 = 722,388.16/x
  3. Step 3: Cross multiply
    1,295,409.52x = 1,787,688.12 × 722,388.16
  4. Step 4: Simplify right side
    1,295,409.52x = 1,291,404,731,660.66
  5. Step 5: Solve for x
    x = 1,291,404,731,660.66/1,295,409.52
  6. Step 6: Final answer
    x = 996,908.48

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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.