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Finding the Third Proportional to 355,699 and 542,582

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Solution

The third proportional to 355,699 and 542,582 is: 827,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,699 : 542,582 = 542,582 : x
  2. Step 2: Convert to fraction form
    355,699/542,582 = 542,582/x
  3. Step 3: Cross multiply
    355,699x = 542,582 × 542,582
  4. Step 4: Simplify right side
    355,699x = 294,395,226,724
  5. Step 5: Solve for x
    x = 294,395,226,724/355,699
  6. Step 6: Final answer
    x = 827,652.67

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.