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Finding the Third Proportional to 478,368 and 740,232

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Solution

The third proportional to 478,368 and 740,232 is: 1,145,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,368 : 740,232 = 740,232 : x
  2. Step 2: Convert to fraction form
    478,368/740,232 = 740,232/x
  3. Step 3: Cross multiply
    478,368x = 740,232 × 740,232
  4. Step 4: Simplify right side
    478,368x = 547,943,413,824
  5. Step 5: Solve for x
    x = 547,943,413,824/478,368
  6. Step 6: Final answer
    x = 1,145,443.29

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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.