Home / 528,028.42-792,436.10-212,487.70

Finding the Fourth Proportional to 528,028.42, 792,436.10 and 212,487.70

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Solution

The fourth proportional to 528,028.42, 792,436.10 and 212,487.70 is: 318,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,028.42 : 792,436.10 = 212,487.70 : x
  2. Step 2: Convert to fraction form
    528,028.42/792,436.10 = 212,487.70/x
  3. Step 3: Cross multiply
    528,028.42x = 792,436.10 × 212,487.70
  4. Step 4: Simplify right side
    528,028.42x = 168,382,924,285.97
  5. Step 5: Solve for x
    x = 168,382,924,285.97/528,028.42
  6. Step 6: Final answer
    x = 318,889.89

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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.