Home / 678,507.53-1,015,217.46-403,949.48

Finding the Fourth Proportional to 678,507.53, 1,015,217.46 and 403,949.48

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Solution

The fourth proportional to 678,507.53, 1,015,217.46 and 403,949.48 is: 604,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,507.53 : 1,015,217.46 = 403,949.48 : x
  2. Step 2: Convert to fraction form
    678,507.53/1,015,217.46 = 403,949.48/x
  3. Step 3: Cross multiply
    678,507.53x = 1,015,217.46 × 403,949.48
  4. Step 4: Simplify right side
    678,507.53x = 410,096,559,977.83
  5. Step 5: Solve for x
    x = 410,096,559,977.83/678,507.53
  6. Step 6: Final answer
    x = 604,409.74

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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.