Home / 464,484.45-640,993.93-257,757.16

Finding the Fourth Proportional to 464,484.45, 640,993.93 and 257,757.16

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Solution

The fourth proportional to 464,484.45, 640,993.93 and 257,757.16 is: 355,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,484.45 : 640,993.93 = 257,757.16 : x
  2. Step 2: Convert to fraction form
    464,484.45/640,993.93 = 257,757.16/x
  3. Step 3: Cross multiply
    464,484.45x = 640,993.93 × 257,757.16
  4. Step 4: Simplify right side
    464,484.45x = 165,220,774,974.04
  5. Step 5: Solve for x
    x = 165,220,774,974.04/464,484.45
  6. Step 6: Final answer
    x = 355,707.87

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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.