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Finding the Fourth Proportional to 740,466, 1,021,843.81 and 400,933.44

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Solution

The fourth proportional to 740,466, 1,021,843.81 and 400,933.44 is: 553,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,466 : 1,021,843.81 = 400,933.44 : x
  2. Step 2: Convert to fraction form
    740,466/1,021,843.81 = 400,933.44/x
  3. Step 3: Cross multiply
    740,466x = 1,021,843.81 × 400,933.44
  4. Step 4: Simplify right side
    740,466x = 409,691,353,886.01
  5. Step 5: Solve for x
    x = 409,691,353,886.01/740,466
  6. Step 6: Final answer
    x = 553,288.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.