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Finding the Fourth Proportional to 626,201.64, 864,131.74 and 354,274.16

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Solution

The fourth proportional to 626,201.64, 864,131.74 and 354,274.16 is: 488,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,201.64 : 864,131.74 = 354,274.16 : x
  2. Step 2: Convert to fraction form
    626,201.64/864,131.74 = 354,274.16/x
  3. Step 3: Cross multiply
    626,201.64x = 864,131.74 × 354,274.16
  4. Step 4: Simplify right side
    626,201.64x = 306,139,546,317.84
  5. Step 5: Solve for x
    x = 306,139,546,317.84/626,201.64
  6. Step 6: Final answer
    x = 488,883.34

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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.