Home / 1,318,426.25-1,819,377.74-745,478.42

Finding the Fourth Proportional to 1,318,426.25, 1,819,377.74 and 745,478.42

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Solution

The fourth proportional to 1,318,426.25, 1,819,377.74 and 745,478.42 is: 1,028,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,426.25 : 1,819,377.74 = 745,478.42 : x
  2. Step 2: Convert to fraction form
    1,318,426.25/1,819,377.74 = 745,478.42/x
  3. Step 3: Cross multiply
    1,318,426.25x = 1,819,377.74 × 745,478.42
  4. Step 4: Simplify right side
    1,318,426.25x = 1,356,306,839,270.98
  5. Step 5: Solve for x
    x = 1,356,306,839,270.98/1,318,426.25
  6. Step 6: Final answer
    x = 1,028,731.67

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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.