Home / 1,259,802.72-1,890,491.40-511,848.72

Finding the Fourth Proportional to 1,259,802.72, 1,890,491.40 and 511,848.72

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Solution

The fourth proportional to 1,259,802.72, 1,890,491.40 and 511,848.72 is: 768,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,802.72 : 1,890,491.40 = 511,848.72 : x
  2. Step 2: Convert to fraction form
    1,259,802.72/1,890,491.40 = 511,848.72/x
  3. Step 3: Cross multiply
    1,259,802.72x = 1,890,491.40 × 511,848.72
  4. Step 4: Simplify right side
    1,259,802.72x = 967,645,603,261.01
  5. Step 5: Solve for x
    x = 967,645,603,261.01/1,259,802.72
  6. Step 6: Final answer
    x = 768,092.96

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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.