Home / 681,026.40-1,019,984.40-401,090.40

Finding the Fourth Proportional to 681,026.40, 1,019,984.40 and 401,090.40

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Solution

The fourth proportional to 681,026.40, 1,019,984.40 and 401,090.40 is: 600,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,026.40 : 1,019,984.40 = 401,090.40 : x
  2. Step 2: Convert to fraction form
    681,026.40/1,019,984.40 = 401,090.40/x
  3. Step 3: Cross multiply
    681,026.40x = 1,019,984.40 × 401,090.40
  4. Step 4: Simplify right side
    681,026.40x = 409,105,950,989.76
  5. Step 5: Solve for x
    x = 409,105,950,989.76/681,026.40
  6. Step 6: Final answer
    x = 600,719.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.