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Finding the Fourth Proportional to 896,369.22, 1,236,978.27 and 488,488.86

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Solution

The fourth proportional to 896,369.22, 1,236,978.27 and 488,488.86 is: 674,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,369.22 : 1,236,978.27 = 488,488.86 : x
  2. Step 2: Convert to fraction form
    896,369.22/1,236,978.27 = 488,488.86/x
  3. Step 3: Cross multiply
    896,369.22x = 1,236,978.27 × 488,488.86
  4. Step 4: Simplify right side
    896,369.22x = 604,250,104,957.07
  5. Step 5: Solve for x
    x = 604,250,104,957.07/896,369.22
  6. Step 6: Final answer
    x = 674,108.49

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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.