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Finding the Fourth Proportional to 655,454.58, 904,544.06 and 368,984.72

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Solution

The fourth proportional to 655,454.58, 904,544.06 and 368,984.72 is: 509,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,454.58 : 904,544.06 = 368,984.72 : x
  2. Step 2: Convert to fraction form
    655,454.58/904,544.06 = 368,984.72/x
  3. Step 3: Cross multiply
    655,454.58x = 904,544.06 × 368,984.72
  4. Step 4: Simplify right side
    655,454.58x = 333,762,930,339.12
  5. Step 5: Solve for x
    x = 333,762,930,339.12/655,454.58
  6. Step 6: Final answer
    x = 509,208.33

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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.