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Finding the Third Proportional to 367,989 and 553,803

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Solution

The third proportional to 367,989 and 553,803 is: 833,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,989 : 553,803 = 553,803 : x
  2. Step 2: Convert to fraction form
    367,989/553,803 = 553,803/x
  3. Step 3: Cross multiply
    367,989x = 553,803 × 553,803
  4. Step 4: Simplify right side
    367,989x = 306,697,762,809
  5. Step 5: Solve for x
    x = 306,697,762,809/367,989
  6. Step 6: Final answer
    x = 833,442.75

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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.