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Finding the Third Proportional to 432,139 and 654,170.50

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Solution

The third proportional to 432,139 and 654,170.50 is: 990,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,139 : 654,170.50 = 654,170.50 : x
  2. Step 2: Convert to fraction form
    432,139/654,170.50 = 654,170.50/x
  3. Step 3: Cross multiply
    432,139x = 654,170.50 × 654,170.50
  4. Step 4: Simplify right side
    432,139x = 427,939,043,070.25
  5. Step 5: Solve for x
    x = 427,939,043,070.25/432,139
  6. Step 6: Final answer
    x = 990,281.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.