Home / 1,916,406.85-2,874,897.38-619,125.76

Finding the Fourth Proportional to 1,916,406.85, 2,874,897.38 and 619,125.76

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Solution

The fourth proportional to 1,916,406.85, 2,874,897.38 and 619,125.76 is: 928,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,406.85 : 2,874,897.38 = 619,125.76 : x
  2. Step 2: Convert to fraction form
    1,916,406.85/2,874,897.38 = 619,125.76/x
  3. Step 3: Cross multiply
    1,916,406.85x = 2,874,897.38 × 619,125.76
  4. Step 4: Simplify right side
    1,916,406.85x = 1,779,923,022,218.88
  5. Step 5: Solve for x
    x = 1,779,923,022,218.88/1,916,406.85
  6. Step 6: Final answer
    x = 928,781.39

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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.