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Finding the Fourth Proportional to 545,088.69, 751,795.61 and 354,164.13

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Solution

The fourth proportional to 545,088.69, 751,795.61 and 354,164.13 is: 488,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,088.69 : 751,795.61 = 354,164.13 : x
  2. Step 2: Convert to fraction form
    545,088.69/751,795.61 = 354,164.13/x
  3. Step 3: Cross multiply
    545,088.69x = 751,795.61 × 354,164.13
  4. Step 4: Simplify right side
    545,088.69x = 266,259,035,279.90
  5. Step 5: Solve for x
    x = 266,259,035,279.90/545,088.69
  6. Step 6: Final answer
    x = 488,469.20

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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.