Home / 1,511,216.40-2,266,824.60-389,285.40

Finding the Fourth Proportional to 1,511,216.40, 2,266,824.60 and 389,285.40

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Solution

The fourth proportional to 1,511,216.40, 2,266,824.60 and 389,285.40 is: 583,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,216.40 : 2,266,824.60 = 389,285.40 : x
  2. Step 2: Convert to fraction form
    1,511,216.40/2,266,824.60 = 389,285.40/x
  3. Step 3: Cross multiply
    1,511,216.40x = 2,266,824.60 × 389,285.40
  4. Step 4: Simplify right side
    1,511,216.40x = 882,441,721,140.84
  5. Step 5: Solve for x
    x = 882,441,721,140.84/1,511,216.40
  6. Step 6: Final answer
    x = 583,928.10

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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.