Home / 1,295,621.52-1,787,953.05-722,661.24

Finding the Fourth Proportional to 1,295,621.52, 1,787,953.05 and 722,661.24

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Solution

The fourth proportional to 1,295,621.52, 1,787,953.05 and 722,661.24 is: 997,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,621.52 : 1,787,953.05 = 722,661.24 : x
  2. Step 2: Convert to fraction form
    1,295,621.52/1,787,953.05 = 722,661.24/x
  3. Step 3: Cross multiply
    1,295,621.52x = 1,787,953.05 × 722,661.24
  4. Step 4: Simplify right side
    1,295,621.52x = 1,292,084,368,174.78
  5. Step 5: Solve for x
    x = 1,292,084,368,174.78/1,295,621.52
  6. Step 6: Final answer
    x = 997,269.92

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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.