Home / 310,579.64-428,868.78-294,636.32

Finding the Fourth Proportional to 310,579.64, 428,868.78 and 294,636.32

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Solution

The fourth proportional to 310,579.64, 428,868.78 and 294,636.32 is: 406,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,579.64 : 428,868.78 = 294,636.32 : x
  2. Step 2: Convert to fraction form
    310,579.64/428,868.78 = 294,636.32/x
  3. Step 3: Cross multiply
    310,579.64x = 428,868.78 × 294,636.32
  4. Step 4: Simplify right side
    310,579.64x = 126,360,319,102.09
  5. Step 5: Solve for x
    x = 126,360,319,102.09/310,579.64
  6. Step 6: Final answer
    x = 406,853.20

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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.