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Finding the Fourth Proportional to 622,258.25, 858,650.65 and 350,321.20

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Solution

The fourth proportional to 622,258.25, 858,650.65 and 350,321.20 is: 483,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,258.25 : 858,650.65 = 350,321.20 : x
  2. Step 2: Convert to fraction form
    622,258.25/858,650.65 = 350,321.20/x
  3. Step 3: Cross multiply
    622,258.25x = 858,650.65 × 350,321.20
  4. Step 4: Simplify right side
    622,258.25x = 300,803,523,066.35
  5. Step 5: Solve for x
    x = 300,803,523,066.35/622,258.25
  6. Step 6: Final answer
    x = 483,406.25

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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.