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Finding the Fourth Proportional to 403,794.01, 556,718.16 and 330,928.64

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Solution

The fourth proportional to 403,794.01, 556,718.16 and 330,928.64 is: 456,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,794.01 : 556,718.16 = 330,928.64 : x
  2. Step 2: Convert to fraction form
    403,794.01/556,718.16 = 330,928.64/x
  3. Step 3: Cross multiply
    403,794.01x = 556,718.16 × 330,928.64
  4. Step 4: Simplify right side
    403,794.01x = 184,233,984,097.19
  5. Step 5: Solve for x
    x = 184,233,984,097.19/403,794.01
  6. Step 6: Final answer
    x = 456,257.35

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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.