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Finding the Fourth Proportional to 612,317.51, 918,159.83 and 275,069.81

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Solution

The fourth proportional to 612,317.51, 918,159.83 and 275,069.81 is: 412,462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,317.51 : 918,159.83 = 275,069.81 : x
  2. Step 2: Convert to fraction form
    612,317.51/918,159.83 = 275,069.81/x
  3. Step 3: Cross multiply
    612,317.51x = 918,159.83 × 275,069.81
  4. Step 4: Simplify right side
    612,317.51x = 252,558,049,987.73
  5. Step 5: Solve for x
    x = 252,558,049,987.73/612,317.51
  6. Step 6: Final answer
    x = 412,462.56

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1.5x scale

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.