Home / 1,210,639.60-1,815,954.54-369,188.92

Finding the Fourth Proportional to 1,210,639.60, 1,815,954.54 and 369,188.92

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Solution

The fourth proportional to 1,210,639.60, 1,815,954.54 and 369,188.92 is: 553,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,639.60 : 1,815,954.54 = 369,188.92 : x
  2. Step 2: Convert to fraction form
    1,210,639.60/1,815,954.54 = 369,188.92/x
  3. Step 3: Cross multiply
    1,210,639.60x = 1,815,954.54 × 369,188.92
  4. Step 4: Simplify right side
    1,210,639.60x = 670,430,295,391.70
  5. Step 5: Solve for x
    x = 670,430,295,391.70/1,210,639.60
  6. Step 6: Final answer
    x = 553,781.90

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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.