Home / 864,093.85-1,296,025.45-256,870.78

Finding the Fourth Proportional to 864,093.85, 1,296,025.45 and 256,870.78

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Solution

The fourth proportional to 864,093.85, 1,296,025.45 and 256,870.78 is: 385,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,093.85 : 1,296,025.45 = 256,870.78 : x
  2. Step 2: Convert to fraction form
    864,093.85/1,296,025.45 = 256,870.78/x
  3. Step 3: Cross multiply
    864,093.85x = 1,296,025.45 × 256,870.78
  4. Step 4: Simplify right side
    864,093.85x = 332,911,064,359.11
  5. Step 5: Solve for x
    x = 332,911,064,359.11/864,093.85
  6. Step 6: Final answer
    x = 385,271.88

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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.