Home / 1,107,317.20-1,662,944.10-808,135.60

Finding the Fourth Proportional to 1,107,317.20, 1,662,944.10 and 808,135.60

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Solution

The fourth proportional to 1,107,317.20, 1,662,944.10 and 808,135.60 is: 1,213,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,317.20 : 1,662,944.10 = 808,135.60 : x
  2. Step 2: Convert to fraction form
    1,107,317.20/1,662,944.10 = 808,135.60/x
  3. Step 3: Cross multiply
    1,107,317.20x = 1,662,944.10 × 808,135.60
  4. Step 4: Simplify right side
    1,107,317.20x = 1,343,884,328,019.96
  5. Step 5: Solve for x
    x = 1,343,884,328,019.96/1,107,317.20
  6. Step 6: Final answer
    x = 1,213,639.89

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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.