Home / 528,839.40-792,092.70-318,109.80

Finding the Fourth Proportional to 528,839.40, 792,092.70 and 318,109.80

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Solution

The fourth proportional to 528,839.40, 792,092.70 and 318,109.80 is: 476,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,839.40 : 792,092.70 = 318,109.80 : x
  2. Step 2: Convert to fraction form
    528,839.40/792,092.70 = 318,109.80/x
  3. Step 3: Cross multiply
    528,839.40x = 792,092.70 × 318,109.80
  4. Step 4: Simplify right side
    528,839.40x = 251,972,450,378.46
  5. Step 5: Solve for x
    x = 251,972,450,378.46/528,839.40
  6. Step 6: Final answer
    x = 476,463.08

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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.