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Finding the Third Proportional to 338,580 and 535,674

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Solution

The third proportional to 338,580 and 535,674 is: 847,500.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,580 : 535,674 = 535,674 : x
  2. Step 2: Convert to fraction form
    338,580/535,674 = 535,674/x
  3. Step 3: Cross multiply
    338,580x = 535,674 × 535,674
  4. Step 4: Simplify right side
    338,580x = 286,946,634,276
  5. Step 5: Solve for x
    x = 286,946,634,276/338,580
  6. Step 6: Final answer
    x = 847,500.25

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.