Home / 740,941.76-1,022,493.20-401,409.20

Finding the Fourth Proportional to 740,941.76, 1,022,493.20 and 401,409.20

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Solution

The fourth proportional to 740,941.76, 1,022,493.20 and 401,409.20 is: 553,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,941.76 : 1,022,493.20 = 401,409.20 : x
  2. Step 2: Convert to fraction form
    740,941.76/1,022,493.20 = 401,409.20/x
  3. Step 3: Cross multiply
    740,941.76x = 1,022,493.20 × 401,409.20
  4. Step 4: Simplify right side
    740,941.76x = 410,438,177,417.44
  5. Step 5: Solve for x
    x = 410,438,177,417.44/740,941.76
  6. Step 6: Final answer
    x = 553,941.21

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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.