Home / 4,290,989.31-6,435,776.56-1,412,393.60

Finding the Fourth Proportional to 4,290,989.31, 6,435,776.56 and 1,412,393.60

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Solution

The fourth proportional to 4,290,989.31, 6,435,776.56 and 1,412,393.60 is: 2,118,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290,989.31 : 6,435,776.56 = 1,412,393.60 : x
  2. Step 2: Convert to fraction form
    4,290,989.31/6,435,776.56 = 1,412,393.60/x
  3. Step 3: Cross multiply
    4,290,989.31x = 6,435,776.56 × 1,412,393.60
  4. Step 4: Simplify right side
    4,290,989.31x = 9,089,849,624,374.02
  5. Step 5: Solve for x
    x = 9,089,849,624,374.02/4,290,989.31
  6. Step 6: Final answer
    x = 2,118,357.56

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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.