Home / 1,260,881.75-1,740,016.82-808,172.75

Finding the Fourth Proportional to 1,260,881.75, 1,740,016.82 and 808,172.75

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Solution

The fourth proportional to 1,260,881.75, 1,740,016.82 and 808,172.75 is: 1,115,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,881.75 : 1,740,016.82 = 808,172.75 : x
  2. Step 2: Convert to fraction form
    1,260,881.75/1,740,016.82 = 808,172.75/x
  3. Step 3: Cross multiply
    1,260,881.75x = 1,740,016.82 × 808,172.75
  4. Step 4: Simplify right side
    1,260,881.75x = 1,406,234,178,465.66
  5. Step 5: Solve for x
    x = 1,406,234,178,465.66/1,260,881.75
  6. Step 6: Final answer
    x = 1,115,278.40

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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.