Home / 450,622.02-621,858.94-280,856

Finding the Fourth Proportional to 450,622.02, 621,858.94 and 280,856

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Solution

The fourth proportional to 450,622.02, 621,858.94 and 280,856 is: 387,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,622.02 : 621,858.94 = 280,856 : x
  2. Step 2: Convert to fraction form
    450,622.02/621,858.94 = 280,856/x
  3. Step 3: Cross multiply
    450,622.02x = 621,858.94 × 280,856
  4. Step 4: Simplify right side
    450,622.02x = 174,652,814,452.64
  5. Step 5: Solve for x
    x = 174,652,814,452.64/450,622.02
  6. Step 6: Final answer
    x = 387,581.62

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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.