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Finding the Fourth Proportional to 628,321.60, 941,445.60 and 535,009.60

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Solution

The fourth proportional to 628,321.60, 941,445.60 and 535,009.60 is: 801,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,321.60 : 941,445.60 = 535,009.60 : x
  2. Step 2: Convert to fraction form
    628,321.60/941,445.60 = 535,009.60/x
  3. Step 3: Cross multiply
    628,321.60x = 941,445.60 × 535,009.60
  4. Step 4: Simplify right side
    628,321.60x = 503,682,433,877.76
  5. Step 5: Solve for x
    x = 503,682,433,877.76/628,321.60
  6. Step 6: Final answer
    x = 801,631.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.