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Finding the Fourth Proportional to 556,083.87, 767,396.73 and 301,435.66

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Solution

The fourth proportional to 556,083.87, 767,396.73 and 301,435.66 is: 415,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,083.87 : 767,396.73 = 301,435.66 : x
  2. Step 2: Convert to fraction form
    556,083.87/767,396.73 = 301,435.66/x
  3. Step 3: Cross multiply
    556,083.87x = 767,396.73 × 301,435.66
  4. Step 4: Simplify right side
    556,083.87x = 231,320,739,789.39
  5. Step 5: Solve for x
    x = 231,320,739,789.39/556,083.87
  6. Step 6: Final answer
    x = 415,981.75

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1.5x scale

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.