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Finding the Fourth Proportional to 655,217.21, 904,050.13 and 368,632.73

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Solution

The fourth proportional to 655,217.21, 904,050.13 and 368,632.73 is: 508,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,217.21 : 904,050.13 = 368,632.73 : x
  2. Step 2: Convert to fraction form
    655,217.21/904,050.13 = 368,632.73/x
  3. Step 3: Cross multiply
    655,217.21x = 904,050.13 × 368,632.73
  4. Step 4: Simplify right side
    655,217.21x = 333,262,461,115.34
  5. Step 5: Solve for x
    x = 333,262,461,115.34/655,217.21
  6. Step 6: Final answer
    x = 508,628.98

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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.