Home / 528,844.40-792,100.20-318,114.80

Finding the Fourth Proportional to 528,844.40, 792,100.20 and 318,114.80

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Solution

The fourth proportional to 528,844.40, 792,100.20 and 318,114.80 is: 476,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,844.40 : 792,100.20 = 318,114.80 : x
  2. Step 2: Convert to fraction form
    528,844.40/792,100.20 = 318,114.80/x
  3. Step 3: Cross multiply
    528,844.40x = 792,100.20 × 318,114.80
  4. Step 4: Simplify right side
    528,844.40x = 251,978,796,702.96
  5. Step 5: Solve for x
    x = 251,978,796,702.96/528,844.40
  6. Step 6: Final answer
    x = 476,470.58

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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.