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Finding the Fourth Proportional to 655,239.74, 904,509.86 and 440,504.36

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Solution

The fourth proportional to 655,239.74, 904,509.86 and 440,504.36 is: 608,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,239.74 : 904,509.86 = 440,504.36 : x
  2. Step 2: Convert to fraction form
    655,239.74/904,509.86 = 440,504.36/x
  3. Step 3: Cross multiply
    655,239.74x = 904,509.86 × 440,504.36
  4. Step 4: Simplify right side
    655,239.74x = 398,440,536,992.99
  5. Step 5: Solve for x
    x = 398,440,536,992.99/655,239.74
  6. Step 6: Final answer
    x = 608,083.60

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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.