Home / 5,285,750.58-7,928,159.31-1,919,986.74

Finding the Fourth Proportional to 5,285,750.58, 7,928,159.31 and 1,919,986.74

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Solution

The fourth proportional to 5,285,750.58, 7,928,159.31 and 1,919,986.74 is: 2,879,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285,750.58 : 7,928,159.31 = 1,919,986.74 : x
  2. Step 2: Convert to fraction form
    5,285,750.58/7,928,159.31 = 1,919,986.74/x
  3. Step 3: Cross multiply
    5,285,750.58x = 7,928,159.31 × 1,919,986.74
  4. Step 4: Simplify right side
    5,285,750.58x = 15,221,960,747,807.55
  5. Step 5: Solve for x
    x = 15,221,960,747,807.55/5,285,750.58
  6. Step 6: Final answer
    x = 2,879,810.64

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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.