Home / 1,042,943.45-1,564,496.03-313,409.69

Finding the Fourth Proportional to 1,042,943.45, 1,564,496.03 and 313,409.69

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Solution

The fourth proportional to 1,042,943.45, 1,564,496.03 and 313,409.69 is: 470,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,943.45 : 1,564,496.03 = 313,409.69 : x
  2. Step 2: Convert to fraction form
    1,042,943.45/1,564,496.03 = 313,409.69/x
  3. Step 3: Cross multiply
    1,042,943.45x = 1,564,496.03 × 313,409.69
  4. Step 4: Simplify right side
    1,042,943.45x = 490,328,214,596.44
  5. Step 5: Solve for x
    x = 490,328,214,596.44/1,042,943.45
  6. Step 6: Final answer
    x = 470,138.83

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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.