Home / 466,486.08-643,949.40-313,612.93

Finding the Fourth Proportional to 466,486.08, 643,949.40 and 313,612.93

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Solution

The fourth proportional to 466,486.08, 643,949.40 and 313,612.93 is: 432,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,486.08 : 643,949.40 = 313,612.93 : x
  2. Step 2: Convert to fraction form
    466,486.08/643,949.40 = 313,612.93/x
  3. Step 3: Cross multiply
    466,486.08x = 643,949.40 × 313,612.93
  4. Step 4: Simplify right side
    466,486.08x = 201,950,858,105.74
  5. Step 5: Solve for x
    x = 201,950,858,105.74/466,486.08
  6. Step 6: Final answer
    x = 432,919.37

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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.