Home / 464,587.11-641,355.48-311,569.56

Finding the Fourth Proportional to 464,587.11, 641,355.48 and 311,569.56

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Solution

The fourth proportional to 464,587.11, 641,355.48 and 311,569.56 is: 430,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,587.11 : 641,355.48 = 311,569.56 : x
  2. Step 2: Convert to fraction form
    464,587.11/641,355.48 = 311,569.56/x
  3. Step 3: Cross multiply
    464,587.11x = 641,355.48 × 311,569.56
  4. Step 4: Simplify right side
    464,587.11x = 199,826,844,707.19
  5. Step 5: Solve for x
    x = 199,826,844,707.19/464,587.11
  6. Step 6: Final answer
    x = 430,117.07

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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.