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Finding the Fourth Proportional to 655,458.72, 904,619.16 and 369,034.80

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Solution

The fourth proportional to 655,458.72, 904,619.16 and 369,034.80 is: 509,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,458.72 : 904,619.16 = 369,034.80 : x
  2. Step 2: Convert to fraction form
    655,458.72/904,619.16 = 369,034.80/x
  3. Step 3: Cross multiply
    655,458.72x = 904,619.16 × 369,034.80
  4. Step 4: Simplify right side
    655,458.72x = 333,835,950,786.77
  5. Step 5: Solve for x
    x = 333,835,950,786.77/655,458.72
  6. Step 6: Final answer
    x = 509,316.51

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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.