Home / 670,581.69-1,005,774.12-221,317.22

Finding the Fourth Proportional to 670,581.69, 1,005,774.12 and 221,317.22

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Solution

The fourth proportional to 670,581.69, 1,005,774.12 and 221,317.22 is: 331,943.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,581.69 : 1,005,774.12 = 221,317.22 : x
  2. Step 2: Convert to fraction form
    670,581.69/1,005,774.12 = 221,317.22/x
  3. Step 3: Cross multiply
    670,581.69x = 1,005,774.12 × 221,317.22
  4. Step 4: Simplify right side
    670,581.69x = 222,595,127,157.48
  5. Step 5: Solve for x
    x = 222,595,127,157.48/670,581.69
  6. Step 6: Final answer
    x = 331,943.34

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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.