Home / 721,611.55-1,082,395.00-342,804.93

Finding the Fourth Proportional to 721,611.55, 1,082,395.00 and 342,804.93

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Solution

The fourth proportional to 721,611.55, 1,082,395.00 and 342,804.93 is: 514,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,611.55 : 1,082,395.00 = 342,804.93 : x
  2. Step 2: Convert to fraction form
    721,611.55/1,082,395.00 = 342,804.93/x
  3. Step 3: Cross multiply
    721,611.55x = 1,082,395.00 × 342,804.93
  4. Step 4: Simplify right side
    721,611.55x = 371,050,338,576.88
  5. Step 5: Solve for x
    x = 371,050,338,576.88/721,611.55
  6. Step 6: Final answer
    x = 514,196.78

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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.