Home / 1,209,107.60-1,815,058.20-649,235.60

Finding the Fourth Proportional to 1,209,107.60, 1,815,058.20 and 649,235.60

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Solution

The fourth proportional to 1,209,107.60, 1,815,058.20 and 649,235.60 is: 974,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,107.60 : 1,815,058.20 = 649,235.60 : x
  2. Step 2: Convert to fraction form
    1,209,107.60/1,815,058.20 = 649,235.60/x
  3. Step 3: Cross multiply
    1,209,107.60x = 1,815,058.20 × 649,235.60
  4. Step 4: Simplify right side
    1,209,107.60x = 1,178,400,399,511.92
  5. Step 5: Solve for x
    x = 1,178,400,399,511.92/1,209,107.60
  6. Step 6: Final answer
    x = 974,603.42

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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.