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Finding the Third Proportional to 434,520 and 649,312.50

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Solution

The third proportional to 434,520 and 649,312.50 is: 970,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,520 : 649,312.50 = 649,312.50 : x
  2. Step 2: Convert to fraction form
    434,520/649,312.50 = 649,312.50/x
  3. Step 3: Cross multiply
    434,520x = 649,312.50 × 649,312.50
  4. Step 4: Simplify right side
    434,520x = 421,606,722,656.25
  5. Step 5: Solve for x
    x = 421,606,722,656.25/434,520
  6. Step 6: Final answer
    x = 970,281.51

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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.