Home / 1,643,564.22-2,268,075.08-918,417.88

Finding the Fourth Proportional to 1,643,564.22, 2,268,075.08 and 918,417.88

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Solution

The fourth proportional to 1,643,564.22, 2,268,075.08 and 918,417.88 is: 1,267,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,564.22 : 2,268,075.08 = 918,417.88 : x
  2. Step 2: Convert to fraction form
    1,643,564.22/2,268,075.08 = 918,417.88/x
  3. Step 3: Cross multiply
    1,643,564.22x = 2,268,075.08 × 918,417.88
  4. Step 4: Simplify right side
    1,643,564.22x = 2,083,040,706,654.43
  5. Step 5: Solve for x
    x = 2,083,040,706,654.43/1,643,564.22
  6. Step 6: Final answer
    x = 1,267,392.34

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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.