Home / 691,804.20-1,037,900.70-336,829.80

Finding the Fourth Proportional to 691,804.20, 1,037,900.70 and 336,829.80

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Solution

The fourth proportional to 691,804.20, 1,037,900.70 and 336,829.80 is: 505,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,804.20 : 1,037,900.70 = 336,829.80 : x
  2. Step 2: Convert to fraction form
    691,804.20/1,037,900.70 = 336,829.80/x
  3. Step 3: Cross multiply
    691,804.20x = 1,037,900.70 × 336,829.80
  4. Step 4: Simplify right side
    691,804.20x = 349,595,885,200.86
  5. Step 5: Solve for x
    x = 349,595,885,200.86/691,804.20
  6. Step 6: Final answer
    x = 505,339.35

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1.5x scale

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.