Home / 1,643,572.72-2,268,086.75-918,426.36

Finding the Fourth Proportional to 1,643,572.72, 2,268,086.75 and 918,426.36

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Solution

The fourth proportional to 1,643,572.72, 2,268,086.75 and 918,426.36 is: 1,267,404.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,572.72 : 2,268,086.75 = 918,426.36 : x
  2. Step 2: Convert to fraction form
    1,643,572.72/2,268,086.75 = 918,426.36/x
  3. Step 3: Cross multiply
    1,643,572.72x = 2,268,086.75 × 918,426.36
  4. Step 4: Simplify right side
    1,643,572.72x = 2,083,070,657,966.73
  5. Step 5: Solve for x
    x = 2,083,070,657,966.73/1,643,572.72
  6. Step 6: Final answer
    x = 1,267,404.02

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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.