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Finding the Fourth Proportional to 668,663.90, 1,003,245.53 and 269,417.94

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Solution

The fourth proportional to 668,663.90, 1,003,245.53 and 269,417.94 is: 404,227.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,663.90 : 1,003,245.53 = 269,417.94 : x
  2. Step 2: Convert to fraction form
    668,663.90/1,003,245.53 = 269,417.94/x
  3. Step 3: Cross multiply
    668,663.90x = 1,003,245.53 × 269,417.94
  4. Step 4: Simplify right side
    668,663.90x = 270,292,338,990.58
  5. Step 5: Solve for x
    x = 270,292,338,990.58/668,663.90
  6. Step 6: Final answer
    x = 404,227.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.