Home / 691,873.20-1,038,004.20-336,898.80

Finding the Fourth Proportional to 691,873.20, 1,038,004.20 and 336,898.80

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Solution

The fourth proportional to 691,873.20, 1,038,004.20 and 336,898.80 is: 505,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,873.20 : 1,038,004.20 = 336,898.80 : x
  2. Step 2: Convert to fraction form
    691,873.20/1,038,004.20 = 336,898.80/x
  3. Step 3: Cross multiply
    691,873.20x = 1,038,004.20 × 336,898.80
  4. Step 4: Simplify right side
    691,873.20x = 349,702,369,374.96
  5. Step 5: Solve for x
    x = 349,702,369,374.96/691,873.20
  6. Step 6: Final answer
    x = 505,442.86

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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.