Home / 670,445.96-1,005,807.49-221,194.31

Finding the Fourth Proportional to 670,445.96, 1,005,807.49 and 221,194.31

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Solution

The fourth proportional to 670,445.96, 1,005,807.49 and 221,194.31 is: 331,837.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,445.96 : 1,005,807.49 = 221,194.31 : x
  2. Step 2: Convert to fraction form
    670,445.96/1,005,807.49 = 221,194.31/x
  3. Step 3: Cross multiply
    670,445.96x = 1,005,807.49 × 221,194.31
  4. Step 4: Simplify right side
    670,445.96x = 222,478,888,161.36
  5. Step 5: Solve for x
    x = 222,478,888,161.36/670,445.96
  6. Step 6: Final answer
    x = 331,837.17

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Double scale
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Similar ratio
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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.