Home / 1,129,631.50-1,558,902.41-620,344.81

Finding the Fourth Proportional to 1,129,631.50, 1,558,902.41 and 620,344.81

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Solution

The fourth proportional to 1,129,631.50, 1,558,902.41 and 620,344.81 is: 856,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,631.50 : 1,558,902.41 = 620,344.81 : x
  2. Step 2: Convert to fraction form
    1,129,631.50/1,558,902.41 = 620,344.81/x
  3. Step 3: Cross multiply
    1,129,631.50x = 1,558,902.41 × 620,344.81
  4. Step 4: Simplify right side
    1,129,631.50x = 967,057,019,339.99
  5. Step 5: Solve for x
    x = 967,057,019,339.99/1,129,631.50
  6. Step 6: Final answer
    x = 856,081.85

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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.