Home / 1,210,639.35-1,815,954.17-369,188.67

Finding the Fourth Proportional to 1,210,639.35, 1,815,954.17 and 369,188.67

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Solution

The fourth proportional to 1,210,639.35, 1,815,954.17 and 369,188.67 is: 553,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,639.35 : 1,815,954.17 = 369,188.67 : x
  2. Step 2: Convert to fraction form
    1,210,639.35/1,815,954.17 = 369,188.67/x
  3. Step 3: Cross multiply
    1,210,639.35x = 1,815,954.17 × 369,188.67
  4. Step 4: Simplify right side
    1,210,639.35x = 670,429,702,957.31
  5. Step 5: Solve for x
    x = 670,429,702,957.31/1,210,639.35
  6. Step 6: Final answer
    x = 553,781.52

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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.