Home / 1,378,577.70-1,900,328.72-969,564.96

Finding the Fourth Proportional to 1,378,577.70, 1,900,328.72 and 969,564.96

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Solution

The fourth proportional to 1,378,577.70, 1,900,328.72 and 969,564.96 is: 1,336,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,577.70 : 1,900,328.72 = 969,564.96 : x
  2. Step 2: Convert to fraction form
    1,378,577.70/1,900,328.72 = 969,564.96/x
  3. Step 3: Cross multiply
    1,378,577.70x = 1,900,328.72 × 969,564.96
  4. Step 4: Simplify right side
    1,378,577.70x = 1,842,492,134,545.83
  5. Step 5: Solve for x
    x = 1,842,492,134,545.83/1,378,577.70
  6. Step 6: Final answer
    x = 1,336,516.71

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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.