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Finding the Fourth Proportional to 553,425.48, 763,742.52 and 338,561.64

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Solution

The fourth proportional to 553,425.48, 763,742.52 and 338,561.64 is: 467,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,425.48 : 763,742.52 = 338,561.64 : x
  2. Step 2: Convert to fraction form
    553,425.48/763,742.52 = 338,561.64/x
  3. Step 3: Cross multiply
    553,425.48x = 763,742.52 × 338,561.64
  4. Step 4: Simplify right side
    553,425.48x = 258,573,920,108.93
  5. Step 5: Solve for x
    x = 258,573,920,108.93/553,425.48
  6. Step 6: Final answer
    x = 467,224.46

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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.