Home / 763,791.15-1,054,048.50-419,631.51

Finding the Fourth Proportional to 763,791.15, 1,054,048.50 and 419,631.51

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Solution

The fourth proportional to 763,791.15, 1,054,048.50 and 419,631.51 is: 579,100.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,791.15 : 1,054,048.50 = 419,631.51 : x
  2. Step 2: Convert to fraction form
    763,791.15/1,054,048.50 = 419,631.51/x
  3. Step 3: Cross multiply
    763,791.15x = 1,054,048.50 × 419,631.51
  4. Step 4: Simplify right side
    763,791.15x = 442,311,963,668.24
  5. Step 5: Solve for x
    x = 442,311,963,668.24/763,791.15
  6. Step 6: Final answer
    x = 579,100.67

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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.