Home / 1,318,427.76-1,819,379.80-745,479.92

Finding the Fourth Proportional to 1,318,427.76, 1,819,379.80 and 745,479.92

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Solution

The fourth proportional to 1,318,427.76, 1,819,379.80 and 745,479.92 is: 1,028,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,427.76 : 1,819,379.80 = 745,479.92 : x
  2. Step 2: Convert to fraction form
    1,318,427.76/1,819,379.80 = 745,479.92/x
  3. Step 3: Cross multiply
    1,318,427.76x = 1,819,379.80 × 745,479.92
  4. Step 4: Simplify right side
    1,318,427.76x = 1,356,311,107,753.62
  5. Step 5: Solve for x
    x = 1,356,311,107,753.62/1,318,427.76
  6. Step 6: Final answer
    x = 1,028,733.73

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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.