Home / 643,922.96-965,490.78-307,066.64

Finding the Fourth Proportional to 643,922.96, 965,490.78 and 307,066.64

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Solution

The fourth proportional to 643,922.96, 965,490.78 and 307,066.64 is: 460,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,922.96 : 965,490.78 = 307,066.64 : x
  2. Step 2: Convert to fraction form
    643,922.96/965,490.78 = 307,066.64/x
  3. Step 3: Cross multiply
    643,922.96x = 965,490.78 × 307,066.64
  4. Step 4: Simplify right side
    643,922.96x = 296,470,009,765.58
  5. Step 5: Solve for x
    x = 296,470,009,765.58/643,922.96
  6. Step 6: Final answer
    x = 460,412.24

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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.