Home / 905,712.40-1,358,525.40-306,614.80

Finding the Fourth Proportional to 905,712.40, 1,358,525.40 and 306,614.80

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Solution

The fourth proportional to 905,712.40, 1,358,525.40 and 306,614.80 is: 459,907.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,712.40 : 1,358,525.40 = 306,614.80 : x
  2. Step 2: Convert to fraction form
    905,712.40/1,358,525.40 = 306,614.80/x
  3. Step 3: Cross multiply
    905,712.40x = 1,358,525.40 × 306,614.80
  4. Step 4: Simplify right side
    905,712.40x = 416,543,993,815.92
  5. Step 5: Solve for x
    x = 416,543,993,815.92/905,712.40
  6. Step 6: Final answer
    x = 459,907.58

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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.