Home / 1,331,411.58-1,996,920.54-489,766.50

Finding the Fourth Proportional to 1,331,411.58, 1,996,920.54 and 489,766.50

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Solution

The fourth proportional to 1,331,411.58, 1,996,920.54 and 489,766.50 is: 734,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,411.58 : 1,996,920.54 = 489,766.50 : x
  2. Step 2: Convert to fraction form
    1,331,411.58/1,996,920.54 = 489,766.50/x
  3. Step 3: Cross multiply
    1,331,411.58x = 1,996,920.54 × 489,766.50
  4. Step 4: Simplify right side
    1,331,411.58x = 978,024,783,653.91
  5. Step 5: Solve for x
    x = 978,024,783,653.91/1,331,411.58
  6. Step 6: Final answer
    x = 734,577.35

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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.