Home / 740,071.90-1,021,299.22-400,540.14

Finding the Fourth Proportional to 740,071.90, 1,021,299.22 and 400,540.14

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Solution

The fourth proportional to 740,071.90, 1,021,299.22 and 400,540.14 is: 552,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,071.90 : 1,021,299.22 = 400,540.14 : x
  2. Step 2: Convert to fraction form
    740,071.90/1,021,299.22 = 400,540.14/x
  3. Step 3: Cross multiply
    740,071.90x = 1,021,299.22 × 400,540.14
  4. Step 4: Simplify right side
    740,071.90x = 409,071,332,560.69
  5. Step 5: Solve for x
    x = 409,071,332,560.69/740,071.90
  6. Step 6: Final answer
    x = 552,745.39

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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.