Home / 926,719.20-1,393,048.40-860,978.40

Finding the Fourth Proportional to 926,719.20, 1,393,048.40 and 860,978.40

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Solution

The fourth proportional to 926,719.20, 1,393,048.40 and 860,978.40 is: 1,294,226.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,719.20 : 1,393,048.40 = 860,978.40 : x
  2. Step 2: Convert to fraction form
    926,719.20/1,393,048.40 = 860,978.40/x
  3. Step 3: Cross multiply
    926,719.20x = 1,393,048.40 × 860,978.40
  4. Step 4: Simplify right side
    926,719.20x = 1,199,384,582,554.56
  5. Step 5: Solve for x
    x = 1,199,384,582,554.56/926,719.20
  6. Step 6: Final answer
    x = 1,294,226.54

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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.