Home / 1,520,134.84-2,100,338.94-1,200,307.96

Finding the Fourth Proportional to 1,520,134.84, 2,100,338.94 and 1,200,307.96

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Solution

The fourth proportional to 1,520,134.84, 2,100,338.94 and 1,200,307.96 is: 1,658,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,134.84 : 2,100,338.94 = 1,200,307.96 : x
  2. Step 2: Convert to fraction form
    1,520,134.84/2,100,338.94 = 1,200,307.96/x
  3. Step 3: Cross multiply
    1,520,134.84x = 2,100,338.94 × 1,200,307.96
  4. Step 4: Simplify right side
    1,520,134.84x = 2,521,053,548,379.96
  5. Step 5: Solve for x
    x = 2,521,053,548,379.96/1,520,134.84
  6. Step 6: Final answer
    x = 1,658,440.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.