Home / 1,511,286.40-2,266,929.60-389,355.40

Finding the Fourth Proportional to 1,511,286.40, 2,266,929.60 and 389,355.40

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Solution

The fourth proportional to 1,511,286.40, 2,266,929.60 and 389,355.40 is: 584,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,286.40 : 2,266,929.60 = 389,355.40 : x
  2. Step 2: Convert to fraction form
    1,511,286.40/2,266,929.60 = 389,355.40/x
  3. Step 3: Cross multiply
    1,511,286.40x = 2,266,929.60 × 389,355.40
  4. Step 4: Simplify right side
    1,511,286.40x = 882,641,281,179.84
  5. Step 5: Solve for x
    x = 882,641,281,179.84/1,511,286.40
  6. Step 6: Final answer
    x = 584,033.10

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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.