Home / 670,152.56-1,005,556.88-315,202.48

Finding the Fourth Proportional to 670,152.56, 1,005,556.88 and 315,202.48

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Solution

The fourth proportional to 670,152.56, 1,005,556.88 and 315,202.48 is: 472,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,152.56 : 1,005,556.88 = 315,202.48 : x
  2. Step 2: Convert to fraction form
    670,152.56/1,005,556.88 = 315,202.48/x
  3. Step 3: Cross multiply
    670,152.56x = 1,005,556.88 × 315,202.48
  4. Step 4: Simplify right side
    670,152.56x = 316,954,022,357.06
  5. Step 5: Solve for x
    x = 316,954,022,357.06/670,152.56
  6. Step 6: Final answer
    x = 472,958.01

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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.