Home / 1,643,555.52-2,268,101.61-918,403.92

Finding the Fourth Proportional to 1,643,555.52, 2,268,101.61 and 918,403.92

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Solution

The fourth proportional to 1,643,555.52, 2,268,101.61 and 918,403.92 is: 1,267,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,555.52 : 2,268,101.61 = 918,403.92 : x
  2. Step 2: Convert to fraction form
    1,643,555.52/2,268,101.61 = 918,403.92/x
  3. Step 3: Cross multiply
    1,643,555.52x = 2,268,101.61 × 918,403.92
  4. Step 4: Simplify right side
    1,643,555.52x = 2,083,033,409,582.31
  5. Step 5: Solve for x
    x = 2,083,033,409,582.31/1,643,555.52
  6. Step 6: Final answer
    x = 1,267,394.61

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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.