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Finding the Fourth Proportional to 862,924.65, 1,294,573.82 and 330,445.71

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Solution

The fourth proportional to 862,924.65, 1,294,573.82 and 330,445.71 is: 495,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,924.65 : 1,294,573.82 = 330,445.71 : x
  2. Step 2: Convert to fraction form
    862,924.65/1,294,573.82 = 330,445.71/x
  3. Step 3: Cross multiply
    862,924.65x = 1,294,573.82 × 330,445.71
  4. Step 4: Simplify right side
    862,924.65x = 427,786,363,445.08
  5. Step 5: Solve for x
    x = 427,786,363,445.08/862,924.65
  6. Step 6: Final answer
    x = 495,740.11

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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.