Home / 1,936,985.70-2,905,478.55-1,230,147.30

Finding the Fourth Proportional to 1,936,985.70, 2,905,478.55 and 1,230,147.30

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Solution

The fourth proportional to 1,936,985.70, 2,905,478.55 and 1,230,147.30 is: 1,845,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936,985.70 : 2,905,478.55 = 1,230,147.30 : x
  2. Step 2: Convert to fraction form
    1,936,985.70/2,905,478.55 = 1,230,147.30/x
  3. Step 3: Cross multiply
    1,936,985.70x = 2,905,478.55 × 1,230,147.30
  4. Step 4: Simplify right side
    1,936,985.70x = 3,574,166,593,490.42
  5. Step 5: Solve for x
    x = 3,574,166,593,490.42/1,936,985.70
  6. Step 6: Final answer
    x = 1,845,220.95

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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.