Home / 1,217,986.02-1,827,101.88-419,162.40

Finding the Fourth Proportional to 1,217,986.02, 1,827,101.88 and 419,162.40

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Solution

The fourth proportional to 1,217,986.02, 1,827,101.88 and 419,162.40 is: 628,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,986.02 : 1,827,101.88 = 419,162.40 : x
  2. Step 2: Convert to fraction form
    1,217,986.02/1,827,101.88 = 419,162.40/x
  3. Step 3: Cross multiply
    1,217,986.02x = 1,827,101.88 × 419,162.40
  4. Step 4: Simplify right side
    1,217,986.02x = 765,852,409,065.31
  5. Step 5: Solve for x
    x = 765,852,409,065.31/1,217,986.02
  6. Step 6: Final answer
    x = 628,785.88

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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.