Home / 1,643,588.47-2,268,109.92-918,442.18

Finding the Fourth Proportional to 1,643,588.47, 2,268,109.92 and 918,442.18

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Solution

The fourth proportional to 1,643,588.47, 2,268,109.92 and 918,442.18 is: 1,267,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,588.47 : 2,268,109.92 = 918,442.18 : x
  2. Step 2: Convert to fraction form
    1,643,588.47/2,268,109.92 = 918,442.18/x
  3. Step 3: Cross multiply
    1,643,588.47x = 2,268,109.92 × 918,442.18
  4. Step 4: Simplify right side
    1,643,588.47x = 2,083,127,819,404.43
  5. Step 5: Solve for x
    x = 2,083,127,819,404.43/1,643,588.47
  6. Step 6: Final answer
    x = 1,267,426.64

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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.