Home / 1,022,399.82-1,533,603.38-312,424.90

Finding the Fourth Proportional to 1,022,399.82, 1,533,603.38 and 312,424.90

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Solution

The fourth proportional to 1,022,399.82, 1,533,603.38 and 312,424.90 is: 468,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,399.82 : 1,533,603.38 = 312,424.90 : x
  2. Step 2: Convert to fraction form
    1,022,399.82/1,533,603.38 = 312,424.90/x
  3. Step 3: Cross multiply
    1,022,399.82x = 1,533,603.38 × 312,424.90
  4. Step 4: Simplify right side
    1,022,399.82x = 479,135,877,240.03
  5. Step 5: Solve for x
    x = 479,135,877,240.03/1,022,399.82
  6. Step 6: Final answer
    x = 468,638.46

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1.5x scale

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.