Home / 1,657,078.90-2,286,747.18-931,926.40

Finding the Fourth Proportional to 1,657,078.90, 2,286,747.18 and 931,926.40

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Solution

The fourth proportional to 1,657,078.90, 2,286,747.18 and 931,926.40 is: 1,286,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,078.90 : 2,286,747.18 = 931,926.40 : x
  2. Step 2: Convert to fraction form
    1,657,078.90/2,286,747.18 = 931,926.40/x
  3. Step 3: Cross multiply
    1,657,078.90x = 2,286,747.18 × 931,926.40
  4. Step 4: Simplify right side
    1,657,078.90x = 2,131,080,067,167.55
  5. Step 5: Solve for x
    x = 2,131,080,067,167.55/1,657,078.90
  6. Step 6: Final answer
    x = 1,286,046.23

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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.