Home / 857,023.33-1,284,427.81-407,881.88

Finding the Fourth Proportional to 857,023.33, 1,284,427.81 and 407,881.88

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Solution

The fourth proportional to 857,023.33, 1,284,427.81 and 407,881.88 is: 611,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,023.33 : 1,284,427.81 = 407,881.88 : x
  2. Step 2: Convert to fraction form
    857,023.33/1,284,427.81 = 407,881.88/x
  3. Step 3: Cross multiply
    857,023.33x = 1,284,427.81 × 407,881.88
  4. Step 4: Simplify right side
    857,023.33x = 523,894,821,405.53
  5. Step 5: Solve for x
    x = 523,894,821,405.53/857,023.33
  6. Step 6: Final answer
    x = 611,295.87

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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.