Home / 2,919,783.40-4,376,564.70-1,121,972.20

Finding the Fourth Proportional to 2,919,783.40, 4,376,564.70 and 1,121,972.20

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Solution

The fourth proportional to 2,919,783.40, 4,376,564.70 and 1,121,972.20 is: 1,681,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919,783.40 : 4,376,564.70 = 1,121,972.20 : x
  2. Step 2: Convert to fraction form
    2,919,783.40/4,376,564.70 = 1,121,972.20/x
  3. Step 3: Cross multiply
    2,919,783.40x = 4,376,564.70 × 1,121,972.20
  4. Step 4: Simplify right side
    2,919,783.40x = 4,910,383,924,901.34
  5. Step 5: Solve for x
    x = 4,910,383,924,901.34/2,919,783.40
  6. Step 6: Final answer
    x = 1,681,763.08

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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.