Home / 905,506.14-1,358,016.20-431,247.90

Finding the Fourth Proportional to 905,506.14, 1,358,016.20 and 431,247.90

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Solution

The fourth proportional to 905,506.14, 1,358,016.20 and 431,247.90 is: 646,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,506.14 : 1,358,016.20 = 431,247.90 : x
  2. Step 2: Convert to fraction form
    905,506.14/1,358,016.20 = 431,247.90/x
  3. Step 3: Cross multiply
    905,506.14x = 1,358,016.20 × 431,247.90
  4. Step 4: Simplify right side
    905,506.14x = 585,641,634,415.98
  5. Step 5: Solve for x
    x = 585,641,634,415.98/905,506.14
  6. Step 6: Final answer
    x = 646,756.12

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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.