Home / 721,615.26-1,082,400.50-342,808.58

Finding the Fourth Proportional to 721,615.26, 1,082,400.50 and 342,808.58

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Solution

The fourth proportional to 721,615.26, 1,082,400.50 and 342,808.58 is: 514,202.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,615.26 : 1,082,400.50 = 342,808.58 : x
  2. Step 2: Convert to fraction form
    721,615.26/1,082,400.50 = 342,808.58/x
  3. Step 3: Cross multiply
    721,615.26x = 1,082,400.50 × 342,808.58
  4. Step 4: Simplify right side
    721,615.26x = 371,056,178,396.29
  5. Step 5: Solve for x
    x = 371,056,178,396.29/721,615.26
  6. Step 6: Final answer
    x = 514,202.23

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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.