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Finding the Fourth Proportional to 555,331.70, 765,784.94 and 475,025.06

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Solution

The fourth proportional to 555,331.70, 765,784.94 and 475,025.06 is: 655,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,331.70 : 765,784.94 = 475,025.06 : x
  2. Step 2: Convert to fraction form
    555,331.70/765,784.94 = 475,025.06/x
  3. Step 3: Cross multiply
    555,331.70x = 765,784.94 × 475,025.06
  4. Step 4: Simplify right side
    555,331.70x = 363,767,037,070.60
  5. Step 5: Solve for x
    x = 363,767,037,070.60/555,331.70
  6. Step 6: Final answer
    x = 655,044.61

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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.