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Finding the Fourth Proportional to 556,931.25, 768,764.52 and 330,576.75

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Solution

The fourth proportional to 556,931.25, 768,764.52 and 330,576.75 is: 456,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,931.25 : 768,764.52 = 330,576.75 : x
  2. Step 2: Convert to fraction form
    556,931.25/768,764.52 = 330,576.75/x
  3. Step 3: Cross multiply
    556,931.25x = 768,764.52 × 330,576.75
  4. Step 4: Simplify right side
    556,931.25x = 254,135,676,536.91
  5. Step 5: Solve for x
    x = 254,135,676,536.91/556,931.25
  6. Step 6: Final answer
    x = 456,314.27

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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.