Home / 1,185,605.40-1,778,408.10-1,087,627.80

Finding the Fourth Proportional to 1,185,605.40, 1,778,408.10 and 1,087,627.80

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Solution

The fourth proportional to 1,185,605.40, 1,778,408.10 and 1,087,627.80 is: 1,631,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,605.40 : 1,778,408.10 = 1,087,627.80 : x
  2. Step 2: Convert to fraction form
    1,185,605.40/1,778,408.10 = 1,087,627.80/x
  3. Step 3: Cross multiply
    1,185,605.40x = 1,778,408.10 × 1,087,627.80
  4. Step 4: Simplify right side
    1,185,605.40x = 1,934,246,089,305.18
  5. Step 5: Solve for x
    x = 1,934,246,089,305.18/1,185,605.40
  6. Step 6: Final answer
    x = 1,631,441.70

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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.