Home / 740,558.53-1,021,964.92-401,026.78

Finding the Fourth Proportional to 740,558.53, 1,021,964.92 and 401,026.78

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Solution

The fourth proportional to 740,558.53, 1,021,964.92 and 401,026.78 is: 553,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,558.53 : 1,021,964.92 = 401,026.78 : x
  2. Step 2: Convert to fraction form
    740,558.53/1,021,964.92 = 401,026.78/x
  3. Step 3: Cross multiply
    740,558.53x = 1,021,964.92 × 401,026.78
  4. Step 4: Simplify right side
    740,558.53x = 409,835,301,140.56
  5. Step 5: Solve for x
    x = 409,835,301,140.56/740,558.53
  6. Step 6: Final answer
    x = 553,413.79

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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.