Home / 1,121,259.72-1,681,889.58-641,150.74

Finding the Fourth Proportional to 1,121,259.72, 1,681,889.58 and 641,150.74

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Solution

The fourth proportional to 1,121,259.72, 1,681,889.58 and 641,150.74 is: 961,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,259.72 : 1,681,889.58 = 641,150.74 : x
  2. Step 2: Convert to fraction form
    1,121,259.72/1,681,889.58 = 641,150.74/x
  3. Step 3: Cross multiply
    1,121,259.72x = 1,681,889.58 × 641,150.74
  4. Step 4: Simplify right side
    1,121,259.72x = 1,078,344,748,815.29
  5. Step 5: Solve for x
    x = 1,078,344,748,815.29/1,121,259.72
  6. Step 6: Final answer
    x = 961,726.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.