Home / 711,300.96-1,066,805.64-311,721.48

Finding the Fourth Proportional to 711,300.96, 1,066,805.64 and 311,721.48

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Solution

The fourth proportional to 711,300.96, 1,066,805.64 and 311,721.48 is: 467,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,300.96 : 1,066,805.64 = 311,721.48 : x
  2. Step 2: Convert to fraction form
    711,300.96/1,066,805.64 = 311,721.48/x
  3. Step 3: Cross multiply
    711,300.96x = 1,066,805.64 × 311,721.48
  4. Step 4: Simplify right side
    711,300.96x = 332,546,232,973.15
  5. Step 5: Solve for x
    x = 332,546,232,973.15/711,300.96
  6. Step 6: Final answer
    x = 467,518.32

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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.