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Finding the Fourth Proportional to 655,438.08, 904,506.48 and 368,962.56

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Solution

The fourth proportional to 655,438.08, 904,506.48 and 368,962.56 is: 509,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,438.08 : 904,506.48 = 368,962.56 : x
  2. Step 2: Convert to fraction form
    655,438.08/904,506.48 = 368,962.56/x
  3. Step 3: Cross multiply
    655,438.08x = 904,506.48 × 368,962.56
  4. Step 4: Simplify right side
    655,438.08x = 333,729,026,397.39
  5. Step 5: Solve for x
    x = 333,729,026,397.39/655,438.08
  6. Step 6: Final answer
    x = 509,169.42

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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.