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Finding the Third Proportional to 358,236 and 785,403

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Solution

The third proportional to 358,236 and 785,403 is: 1,721,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,236 : 785,403 = 785,403 : x
  2. Step 2: Convert to fraction form
    358,236/785,403 = 785,403/x
  3. Step 3: Cross multiply
    358,236x = 785,403 × 785,403
  4. Step 4: Simplify right side
    358,236x = 616,857,872,409
  5. Step 5: Solve for x
    x = 616,857,872,409/358,236
  6. Step 6: Final answer
    x = 1,721,931.55

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.