Home / 854,435.10-1,280,898.38-322,329.80

Finding the Fourth Proportional to 854,435.10, 1,280,898.38 and 322,329.80

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Solution

The fourth proportional to 854,435.10, 1,280,898.38 and 322,329.80 is: 483,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,435.10 : 1,280,898.38 = 322,329.80 : x
  2. Step 2: Convert to fraction form
    854,435.10/1,280,898.38 = 322,329.80/x
  3. Step 3: Cross multiply
    854,435.10x = 1,280,898.38 × 322,329.80
  4. Step 4: Simplify right side
    854,435.10x = 412,871,718,645.72
  5. Step 5: Solve for x
    x = 412,871,718,645.72/854,435.10
  6. Step 6: Final answer
    x = 483,210.16

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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.