Home / 740,970.96-1,022,540.93-401,439.21

Finding the Fourth Proportional to 740,970.96, 1,022,540.93 and 401,439.21

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Solution

The fourth proportional to 740,970.96, 1,022,540.93 and 401,439.21 is: 553,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,970.96 : 1,022,540.93 = 401,439.21 : x
  2. Step 2: Convert to fraction form
    740,970.96/1,022,540.93 = 401,439.21/x
  3. Step 3: Cross multiply
    740,970.96x = 1,022,540.93 × 401,439.21
  4. Step 4: Simplify right side
    740,970.96x = 410,488,023,131.87
  5. Step 5: Solve for x
    x = 410,488,023,131.87/740,970.96
  6. Step 6: Final answer
    x = 553,986.65

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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.