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Finding the Fourth Proportional to 655,605.50, 904,763.49 and 365,216.72

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Solution

The fourth proportional to 655,605.50, 904,763.49 and 365,216.72 is: 504,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,605.50 : 904,763.49 = 365,216.72 : x
  2. Step 2: Convert to fraction form
    655,605.50/904,763.49 = 365,216.72/x
  3. Step 3: Cross multiply
    655,605.50x = 904,763.49 × 365,216.72
  4. Step 4: Simplify right side
    655,605.50x = 330,434,748,300.17
  5. Step 5: Solve for x
    x = 330,434,748,300.17/655,605.50
  6. Step 6: Final answer
    x = 504,014.61

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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.