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Finding the Fourth Proportional to 403,964.88, 556,716.35 and 301,810.11

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Solution

The fourth proportional to 403,964.88, 556,716.35 and 301,810.11 is: 415,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,964.88 : 556,716.35 = 301,810.11 : x
  2. Step 2: Convert to fraction form
    403,964.88/556,716.35 = 301,810.11/x
  3. Step 3: Cross multiply
    403,964.88x = 556,716.35 × 301,810.11
  4. Step 4: Simplify right side
    403,964.88x = 168,022,621,499.14
  5. Step 5: Solve for x
    x = 168,022,621,499.14/403,964.88
  6. Step 6: Final answer
    x = 415,933.74

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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.