Home / 1,218,363-1,681,107.66-788,583.48

Finding the Fourth Proportional to 1,218,363, 1,681,107.66 and 788,583.48

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Solution

The fourth proportional to 1,218,363, 1,681,107.66 and 788,583.48 is: 1,088,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,363 : 1,681,107.66 = 788,583.48 : x
  2. Step 2: Convert to fraction form
    1,218,363/1,681,107.66 = 788,583.48/x
  3. Step 3: Cross multiply
    1,218,363x = 1,681,107.66 × 788,583.48
  4. Step 4: Simplify right side
    1,218,363x = 1,325,693,728,777.46
  5. Step 5: Solve for x
    x = 1,325,693,728,777.46/1,218,363
  6. Step 6: Final answer
    x = 1,088,094.21

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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.