Home / 1,985,039.19-2,977,854.03-920,188.89

Finding the Fourth Proportional to 1,985,039.19, 2,977,854.03 and 920,188.89

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Solution

The fourth proportional to 1,985,039.19, 2,977,854.03 and 920,188.89 is: 1,380,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,039.19 : 2,977,854.03 = 920,188.89 : x
  2. Step 2: Convert to fraction form
    1,985,039.19/2,977,854.03 = 920,188.89/x
  3. Step 3: Cross multiply
    1,985,039.19x = 2,977,854.03 × 920,188.89
  4. Step 4: Simplify right side
    1,985,039.19x = 2,740,188,194,447.73
  5. Step 5: Solve for x
    x = 2,740,188,194,447.73/1,985,039.19
  6. Step 6: Final answer
    x = 1,380,420.20

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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.