Home / 1,432,078.80-2,147,815.62-420,925.74

Finding the Fourth Proportional to 1,432,078.80, 2,147,815.62 and 420,925.74

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Solution

The fourth proportional to 1,432,078.80, 2,147,815.62 and 420,925.74 is: 631,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,078.80 : 2,147,815.62 = 420,925.74 : x
  2. Step 2: Convert to fraction form
    1,432,078.80/2,147,815.62 = 420,925.74/x
  3. Step 3: Cross multiply
    1,432,078.80x = 2,147,815.62 × 420,925.74
  4. Step 4: Simplify right side
    1,432,078.80x = 904,070,879,232.06
  5. Step 5: Solve for x
    x = 904,070,879,232.06/1,432,078.80
  6. Step 6: Final answer
    x = 631,299.67

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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.