Home / 1,848,138.40-2,771,008.80-782,891.20

Finding the Fourth Proportional to 1,848,138.40, 2,771,008.80 and 782,891.20

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Solution

The fourth proportional to 1,848,138.40, 2,771,008.80 and 782,891.20 is: 1,173,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848,138.40 : 2,771,008.80 = 782,891.20 : x
  2. Step 2: Convert to fraction form
    1,848,138.40/2,771,008.80 = 782,891.20/x
  3. Step 3: Cross multiply
    1,848,138.40x = 2,771,008.80 × 782,891.20
  4. Step 4: Simplify right side
    1,848,138.40x = 2,169,398,404,642.56
  5. Step 5: Solve for x
    x = 2,169,398,404,642.56/1,848,138.40
  6. Step 6: Final answer
    x = 1,173,828.98

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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.