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Finding the Fourth Proportional to 551,602.82, 761,222.22 and 306,610.58

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Solution

The fourth proportional to 551,602.82, 761,222.22 and 306,610.58 is: 423,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,602.82 : 761,222.22 = 306,610.58 : x
  2. Step 2: Convert to fraction form
    551,602.82/761,222.22 = 306,610.58/x
  3. Step 3: Cross multiply
    551,602.82x = 761,222.22 × 306,610.58
  4. Step 4: Simplify right side
    551,602.82x = 233,398,786,383.09
  5. Step 5: Solve for x
    x = 233,398,786,383.09/551,602.82
  6. Step 6: Final answer
    x = 423,128.34

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1.5x scale

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.