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Finding the Fourth Proportional to 628,009.59, 866,629.08 and 341,530.02

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Solution

The fourth proportional to 628,009.59, 866,629.08 and 341,530.02 is: 471,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,009.59 : 866,629.08 = 341,530.02 : x
  2. Step 2: Convert to fraction form
    628,009.59/866,629.08 = 341,530.02/x
  3. Step 3: Cross multiply
    628,009.59x = 866,629.08 × 341,530.02
  4. Step 4: Simplify right side
    628,009.59x = 295,979,847,024.98
  5. Step 5: Solve for x
    x = 295,979,847,024.98/628,009.59
  6. Step 6: Final answer
    x = 471,298.29

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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.