Home / 1,278,102.18-1,763,790.39-705,162.90

Finding the Fourth Proportional to 1,278,102.18, 1,763,790.39 and 705,162.90

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Solution

The fourth proportional to 1,278,102.18, 1,763,790.39 and 705,162.90 is: 973,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,102.18 : 1,763,790.39 = 705,162.90 : x
  2. Step 2: Convert to fraction form
    1,278,102.18/1,763,790.39 = 705,162.90/x
  3. Step 3: Cross multiply
    1,278,102.18x = 1,763,790.39 × 705,162.90
  4. Step 4: Simplify right side
    1,278,102.18x = 1,243,759,546,404.53
  5. Step 5: Solve for x
    x = 1,243,759,546,404.53/1,278,102.18
  6. Step 6: Final answer
    x = 973,129.98

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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.