Home / 856,627.98-1,284,711.66-257,455.32

Finding the Fourth Proportional to 856,627.98, 1,284,711.66 and 257,455.32

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Solution

The fourth proportional to 856,627.98, 1,284,711.66 and 257,455.32 is: 386,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,627.98 : 1,284,711.66 = 257,455.32 : x
  2. Step 2: Convert to fraction form
    856,627.98/1,284,711.66 = 257,455.32/x
  3. Step 3: Cross multiply
    856,627.98x = 1,284,711.66 × 257,455.32
  4. Step 4: Simplify right side
    856,627.98x = 330,755,851,533.03
  5. Step 5: Solve for x
    x = 330,755,851,533.03/856,627.98
  6. Step 6: Final answer
    x = 386,113.76

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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.