Home / 1,312,878.38-1,811,772.36-709,266.38

Finding the Fourth Proportional to 1,312,878.38, 1,811,772.36 and 709,266.38

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Solution

The fourth proportional to 1,312,878.38, 1,811,772.36 and 709,266.38 is: 978,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,878.38 : 1,811,772.36 = 709,266.38 : x
  2. Step 2: Convert to fraction form
    1,312,878.38/1,811,772.36 = 709,266.38/x
  3. Step 3: Cross multiply
    1,312,878.38x = 1,811,772.36 × 709,266.38
  4. Step 4: Simplify right side
    1,312,878.38x = 1,285,029,214,102.40
  5. Step 5: Solve for x
    x = 1,285,029,214,102.40/1,312,878.38
  6. Step 6: Final answer
    x = 978,787.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.