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Finding the Third Proportional to 478,853 and 741,440

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Solution

The third proportional to 478,853 and 741,440 is: 1,148,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,853 : 741,440 = 741,440 : x
  2. Step 2: Convert to fraction form
    478,853/741,440 = 741,440/x
  3. Step 3: Cross multiply
    478,853x = 741,440 × 741,440
  4. Step 4: Simplify right side
    478,853x = 549,733,273,600
  5. Step 5: Solve for x
    x = 549,733,273,600/478,853
  6. Step 6: Final answer
    x = 1,148,020.95

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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.