Home / 817,109.40-1,226,441.70-698,914.20

Finding the Fourth Proportional to 817,109.40, 1,226,441.70 and 698,914.20

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Solution

The fourth proportional to 817,109.40, 1,226,441.70 and 698,914.20 is: 1,049,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,109.40 : 1,226,441.70 = 698,914.20 : x
  2. Step 2: Convert to fraction form
    817,109.40/1,226,441.70 = 698,914.20/x
  3. Step 3: Cross multiply
    817,109.40x = 1,226,441.70 × 698,914.20
  4. Step 4: Simplify right side
    817,109.40x = 857,177,519,602.14
  5. Step 5: Solve for x
    x = 857,177,519,602.14/817,109.40
  6. Step 6: Final answer
    x = 1,049,036.42

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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.