Home / 1,328,271.40-1,992,193.26-381,426.76

Finding the Fourth Proportional to 1,328,271.40, 1,992,193.26 and 381,426.76

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Solution

The fourth proportional to 1,328,271.40, 1,992,193.26 and 381,426.76 is: 572,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,271.40 : 1,992,193.26 = 381,426.76 : x
  2. Step 2: Convert to fraction form
    1,328,271.40/1,992,193.26 = 381,426.76/x
  3. Step 3: Cross multiply
    1,328,271.40x = 1,992,193.26 × 381,426.76
  4. Step 4: Simplify right side
    1,328,271.40x = 759,875,820,455.64
  5. Step 5: Solve for x
    x = 759,875,820,455.64/1,328,271.40
  6. Step 6: Final answer
    x = 572,078.73

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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.