Home / 1,920,615.62-2,642,800.30-1,862,178.98

Finding the Fourth Proportional to 1,920,615.62, 2,642,800.30 and 1,862,178.98

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Solution

The fourth proportional to 1,920,615.62, 2,642,800.30 and 1,862,178.98 is: 2,562,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,615.62 : 2,642,800.30 = 1,862,178.98 : x
  2. Step 2: Convert to fraction form
    1,920,615.62/2,642,800.30 = 1,862,178.98/x
  3. Step 3: Cross multiply
    1,920,615.62x = 2,642,800.30 × 1,862,178.98
  4. Step 4: Simplify right side
    1,920,615.62x = 4,921,367,149,128.25
  5. Step 5: Solve for x
    x = 4,921,367,149,128.25/1,920,615.62
  6. Step 6: Final answer
    x = 2,562,390.47

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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.