Home / 1,392,261.89-2,088,394.63-381,392.72

Finding the Fourth Proportional to 1,392,261.89, 2,088,394.63 and 381,392.72

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Solution

The fourth proportional to 1,392,261.89, 2,088,394.63 and 381,392.72 is: 572,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,261.89 : 2,088,394.63 = 381,392.72 : x
  2. Step 2: Convert to fraction form
    1,392,261.89/2,088,394.63 = 381,392.72/x
  3. Step 3: Cross multiply
    1,392,261.89x = 2,088,394.63 × 381,392.72
  4. Step 4: Simplify right side
    1,392,261.89x = 796,498,506,950.45
  5. Step 5: Solve for x
    x = 796,498,506,950.45/1,392,261.89
  6. Step 6: Final answer
    x = 572,089.57

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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.