Home / 1,388,683.70-2,078,359.95-968,779.70

Finding the Fourth Proportional to 1,388,683.70, 2,078,359.95 and 968,779.70

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Solution

The fourth proportional to 1,388,683.70, 2,078,359.95 and 968,779.70 is: 1,449,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,683.70 : 2,078,359.95 = 968,779.70 : x
  2. Step 2: Convert to fraction form
    1,388,683.70/2,078,359.95 = 968,779.70/x
  3. Step 3: Cross multiply
    1,388,683.70x = 2,078,359.95 × 968,779.70
  4. Step 4: Simplify right side
    1,388,683.70x = 2,013,472,928,853.02
  5. Step 5: Solve for x
    x = 2,013,472,928,853.02/1,388,683.70
  6. Step 6: Final answer
    x = 1,449,914.71

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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.