Home / 1,861,490.40-2,792,684.32-646,890.48

Finding the Fourth Proportional to 1,861,490.40, 2,792,684.32 and 646,890.48

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Solution

The fourth proportional to 1,861,490.40, 2,792,684.32 and 646,890.48 is: 970,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,490.40 : 2,792,684.32 = 646,890.48 : x
  2. Step 2: Convert to fraction form
    1,861,490.40/2,792,684.32 = 646,890.48/x
  3. Step 3: Cross multiply
    1,861,490.40x = 2,792,684.32 × 646,890.48
  4. Step 4: Simplify right side
    1,861,490.40x = 1,806,560,900,253.27
  5. Step 5: Solve for x
    x = 1,806,560,900,253.27/1,861,490.40
  6. Step 6: Final answer
    x = 970,491.66

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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.