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Finding the Fourth Proportional to 647,678.26, 971,528.73 and 248,341.78

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Solution

The fourth proportional to 647,678.26, 971,528.73 and 248,341.78 is: 372,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,678.26 : 971,528.73 = 248,341.78 : x
  2. Step 2: Convert to fraction form
    647,678.26/971,528.73 = 248,341.78/x
  3. Step 3: Cross multiply
    647,678.26x = 971,528.73 × 248,341.78
  4. Step 4: Simplify right side
    647,678.26x = 241,271,174,129.34
  5. Step 5: Solve for x
    x = 241,271,174,129.34/647,678.26
  6. Step 6: Final answer
    x = 372,517.02

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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.