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Finding the Fourth Proportional to 655,525.77, 904,650.79 and 379,893.07

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Solution

The fourth proportional to 655,525.77, 904,650.79 and 379,893.07 is: 524,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,525.77 : 904,650.79 = 379,893.07 : x
  2. Step 2: Convert to fraction form
    655,525.77/904,650.79 = 379,893.07/x
  3. Step 3: Cross multiply
    655,525.77x = 904,650.79 × 379,893.07
  4. Step 4: Simplify right side
    655,525.77x = 343,670,564,941.29
  5. Step 5: Solve for x
    x = 343,670,564,941.29/655,525.77
  6. Step 6: Final answer
    x = 524,267.06

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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.