Home / 1,187,366.96-1,638,776.94-900,403.40

Finding the Fourth Proportional to 1,187,366.96, 1,638,776.94 and 900,403.40

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Solution

The fourth proportional to 1,187,366.96, 1,638,776.94 and 900,403.40 is: 1,242,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,366.96 : 1,638,776.94 = 900,403.40 : x
  2. Step 2: Convert to fraction form
    1,187,366.96/1,638,776.94 = 900,403.40/x
  3. Step 3: Cross multiply
    1,187,366.96x = 1,638,776.94 × 900,403.40
  4. Step 4: Simplify right side
    1,187,366.96x = 1,475,560,328,617.60
  5. Step 5: Solve for x
    x = 1,475,560,328,617.60/1,187,366.96
  6. Step 6: Final answer
    x = 1,242,716.34

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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.