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Finding the Third Proportional to 388,250 and 830,476

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Solution

The third proportional to 388,250 and 830,476 is: 1,776,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,250 : 830,476 = 830,476 : x
  2. Step 2: Convert to fraction form
    388,250/830,476 = 830,476/x
  3. Step 3: Cross multiply
    388,250x = 830,476 × 830,476
  4. Step 4: Simplify right side
    388,250x = 689,690,386,576
  5. Step 5: Solve for x
    x = 689,690,386,576/388,250
  6. Step 6: Final answer
    x = 1,776,407.95

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.