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Finding the Third Proportional to 310,510.50 and 632,440

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Solution

The third proportional to 310,510.50 and 632,440 is: 1,288,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,510.50 : 632,440 = 632,440 : x
  2. Step 2: Convert to fraction form
    310,510.50/632,440 = 632,440/x
  3. Step 3: Cross multiply
    310,510.50x = 632,440 × 632,440
  4. Step 4: Simplify right side
    310,510.50x = 399,980,353,600
  5. Step 5: Solve for x
    x = 399,980,353,600/310,510.50
  6. Step 6: Final answer
    x = 1,288,137.93

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.