Home / 1,318,071.42-1,819,017-745,164.90

Finding the Fourth Proportional to 1,318,071.42, 1,819,017 and 745,164.90

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Solution

The fourth proportional to 1,318,071.42, 1,819,017 and 745,164.90 is: 1,028,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,071.42 : 1,819,017 = 745,164.90 : x
  2. Step 2: Convert to fraction form
    1,318,071.42/1,819,017 = 745,164.90/x
  3. Step 3: Cross multiply
    1,318,071.42x = 1,819,017 × 745,164.90
  4. Step 4: Simplify right side
    1,318,071.42x = 1,355,467,620,903.30
  5. Step 5: Solve for x
    x = 1,355,467,620,903.30/1,318,071.42
  6. Step 6: Final answer
    x = 1,028,371.91

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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.