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Finding the Third Proportional to 429,225.75 and 664,312.50

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Solution

The third proportional to 429,225.75 and 664,312.50 is: 1,028,156.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,225.75 : 664,312.50 = 664,312.50 : x
  2. Step 2: Convert to fraction form
    429,225.75/664,312.50 = 664,312.50/x
  3. Step 3: Cross multiply
    429,225.75x = 664,312.50 × 664,312.50
  4. Step 4: Simplify right side
    429,225.75x = 441,311,097,656.25
  5. Step 5: Solve for x
    x = 441,311,097,656.25/429,225.75
  6. Step 6: Final answer
    x = 1,028,156.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.