Home / 1,021,455.68-1,409,504.52-628,926.30

Finding the Fourth Proportional to 1,021,455.68, 1,409,504.52 and 628,926.30

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Solution

The fourth proportional to 1,021,455.68, 1,409,504.52 and 628,926.30 is: 867,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,455.68 : 1,409,504.52 = 628,926.30 : x
  2. Step 2: Convert to fraction form
    1,021,455.68/1,409,504.52 = 628,926.30/x
  3. Step 3: Cross multiply
    1,021,455.68x = 1,409,504.52 × 628,926.30
  4. Step 4: Simplify right side
    1,021,455.68x = 886,474,466,120.64
  5. Step 5: Solve for x
    x = 886,474,466,120.64/1,021,455.68
  6. Step 6: Final answer
    x = 867,854.07

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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.