Home / 393,783.07-542,277.03-342,076.45

Finding the Fourth Proportional to 393,783.07, 542,277.03 and 342,076.45

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Solution

The fourth proportional to 393,783.07, 542,277.03 and 342,076.45 is: 471,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,783.07 : 542,277.03 = 342,076.45 : x
  2. Step 2: Convert to fraction form
    393,783.07/542,277.03 = 342,076.45/x
  3. Step 3: Cross multiply
    393,783.07x = 542,277.03 × 342,076.45
  4. Step 4: Simplify right side
    393,783.07x = 185,500,201,338.94
  5. Step 5: Solve for x
    x = 185,500,201,338.94/393,783.07
  6. Step 6: Final answer
    x = 471,072.06

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1.5x scale

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.