Home / 1,625,945.40-2,242,900.58-1,280,508.75

Finding the Fourth Proportional to 1,625,945.40, 2,242,900.58 and 1,280,508.75

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Solution

The fourth proportional to 1,625,945.40, 2,242,900.58 and 1,280,508.75 is: 1,766,390.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625,945.40 : 2,242,900.58 = 1,280,508.75 : x
  2. Step 2: Convert to fraction form
    1,625,945.40/2,242,900.58 = 1,280,508.75/x
  3. Step 3: Cross multiply
    1,625,945.40x = 2,242,900.58 × 1,280,508.75
  4. Step 4: Simplify right side
    1,625,945.40x = 2,872,053,811,667.53
  5. Step 5: Solve for x
    x = 2,872,053,811,667.53/1,625,945.40
  6. Step 6: Final answer
    x = 1,766,390.07

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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.