Home / 529,936.40-793,090.20-319,725.20

Finding the Fourth Proportional to 529,936.40, 793,090.20 and 319,725.20

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Solution

The fourth proportional to 529,936.40, 793,090.20 and 319,725.20 is: 478,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,936.40 : 793,090.20 = 319,725.20 : x
  2. Step 2: Convert to fraction form
    529,936.40/793,090.20 = 319,725.20/x
  3. Step 3: Cross multiply
    529,936.40x = 793,090.20 × 319,725.20
  4. Step 4: Simplify right side
    529,936.40x = 253,570,922,813.04
  5. Step 5: Solve for x
    x = 253,570,922,813.04/529,936.40
  6. Step 6: Final answer
    x = 478,493.12

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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.