Home / 1,655,540.21-2,284,633.52-920,488.78

Finding the Fourth Proportional to 1,655,540.21, 2,284,633.52 and 920,488.78

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Solution

The fourth proportional to 1,655,540.21, 2,284,633.52 and 920,488.78 is: 1,270,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655,540.21 : 2,284,633.52 = 920,488.78 : x
  2. Step 2: Convert to fraction form
    1,655,540.21/2,284,633.52 = 920,488.78/x
  3. Step 3: Cross multiply
    1,655,540.21x = 2,284,633.52 × 920,488.78
  4. Step 4: Simplify right side
    1,655,540.21x = 2,102,979,522,681.05
  5. Step 5: Solve for x
    x = 2,102,979,522,681.05/1,655,540.21
  6. Step 6: Final answer
    x = 1,270,267.87

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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.