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Finding the Fourth Proportional to 655,564.73, 904,679.06 and 383,684.40

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Solution

The fourth proportional to 655,564.73, 904,679.06 and 383,684.40 is: 529,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,564.73 : 904,679.06 = 383,684.40 : x
  2. Step 2: Convert to fraction form
    655,564.73/904,679.06 = 383,684.40/x
  3. Step 3: Cross multiply
    655,564.73x = 904,679.06 × 383,684.40
  4. Step 4: Simplify right side
    655,564.73x = 347,111,240,410.24
  5. Step 5: Solve for x
    x = 347,111,240,410.24/655,564.73
  6. Step 6: Final answer
    x = 529,484.32

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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.