Home / 1,210,269.80-1,815,404.70-311,709.80

Finding the Fourth Proportional to 1,210,269.80, 1,815,404.70 and 311,709.80

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Solution

The fourth proportional to 1,210,269.80, 1,815,404.70 and 311,709.80 is: 467,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,269.80 : 1,815,404.70 = 311,709.80 : x
  2. Step 2: Convert to fraction form
    1,210,269.80/1,815,404.70 = 311,709.80/x
  3. Step 3: Cross multiply
    1,210,269.80x = 1,815,404.70 × 311,709.80
  4. Step 4: Simplify right side
    1,210,269.80x = 565,879,435,956.06
  5. Step 5: Solve for x
    x = 565,879,435,956.06/1,210,269.80
  6. Step 6: Final answer
    x = 467,564.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.