Home / 874,178.72-1,311,501.42-313,269.92

Finding the Fourth Proportional to 874,178.72, 1,311,501.42 and 313,269.92

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Solution

The fourth proportional to 874,178.72, 1,311,501.42 and 313,269.92 is: 469,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,178.72 : 1,311,501.42 = 313,269.92 : x
  2. Step 2: Convert to fraction form
    874,178.72/1,311,501.42 = 313,269.92/x
  3. Step 3: Cross multiply
    874,178.72x = 1,311,501.42 × 313,269.92
  4. Step 4: Simplify right side
    874,178.72x = 410,853,944,923.29
  5. Step 5: Solve for x
    x = 410,853,944,923.29/874,178.72
  6. Step 6: Final answer
    x = 469,988.50

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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.