Home / 816,439.70-1,126,715.70-448,944.83

Finding the Fourth Proportional to 816,439.70, 1,126,715.70 and 448,944.83

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Solution

The fourth proportional to 816,439.70, 1,126,715.70 and 448,944.83 is: 619,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,439.70 : 1,126,715.70 = 448,944.83 : x
  2. Step 2: Convert to fraction form
    816,439.70/1,126,715.70 = 448,944.83/x
  3. Step 3: Cross multiply
    816,439.70x = 1,126,715.70 × 448,944.83
  4. Step 4: Simplify right side
    816,439.70x = 505,833,188,669.98
  5. Step 5: Solve for x
    x = 505,833,188,669.98/816,439.70
  6. Step 6: Final answer
    x = 619,559.76

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1.5x scale

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.