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Finding the Third Proportional to 520,085 and 776,695

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Solution

The third proportional to 520,085 and 776,695 is: 1,159,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,085 : 776,695 = 776,695 : x
  2. Step 2: Convert to fraction form
    520,085/776,695 = 776,695/x
  3. Step 3: Cross multiply
    520,085x = 776,695 × 776,695
  4. Step 4: Simplify right side
    520,085x = 603,255,123,025
  5. Step 5: Solve for x
    x = 603,255,123,025/520,085
  6. Step 6: Final answer
    x = 1,159,916.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.