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Finding the Third Proportional to 630,378 and 957,240

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Solution

The third proportional to 630,378 and 957,240 is: 1,453,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,378 : 957,240 = 957,240 : x
  2. Step 2: Convert to fraction form
    630,378/957,240 = 957,240/x
  3. Step 3: Cross multiply
    630,378x = 957,240 × 957,240
  4. Step 4: Simplify right side
    630,378x = 916,308,417,600
  5. Step 5: Solve for x
    x = 916,308,417,600/630,378
  6. Step 6: Final answer
    x = 1,453,585.65

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.