Home / 464,222.40-640,740.86-283,034.23

Finding the Fourth Proportional to 464,222.40, 640,740.86 and 283,034.23

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Solution

The fourth proportional to 464,222.40, 640,740.86 and 283,034.23 is: 390,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,222.40 : 640,740.86 = 283,034.23 : x
  2. Step 2: Convert to fraction form
    464,222.40/640,740.86 = 283,034.23/x
  3. Step 3: Cross multiply
    464,222.40x = 640,740.86 × 283,034.23
  4. Step 4: Simplify right side
    464,222.40x = 181,351,595,939.64
  5. Step 5: Solve for x
    x = 181,351,595,939.64/464,222.40
  6. Step 6: Final answer
    x = 390,656.71

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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.