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Finding the Third Proportional to 918,090 and 1,377,135

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Solution

The third proportional to 918,090 and 1,377,135 is: 2,065,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,090 : 1,377,135 = 1,377,135 : x
  2. Step 2: Convert to fraction form
    918,090/1,377,135 = 1,377,135/x
  3. Step 3: Cross multiply
    918,090x = 1,377,135 × 1,377,135
  4. Step 4: Simplify right side
    918,090x = 1,896,500,808,225
  5. Step 5: Solve for x
    x = 1,896,500,808,225/918,090
  6. Step 6: Final answer
    x = 2,065,702.50

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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.