Home / 1,451,784.88-2,178,120.44-742,311.16

Finding the Fourth Proportional to 1,451,784.88, 2,178,120.44 and 742,311.16

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Solution

The fourth proportional to 1,451,784.88, 2,178,120.44 and 742,311.16 is: 1,113,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,784.88 : 2,178,120.44 = 742,311.16 : x
  2. Step 2: Convert to fraction form
    1,451,784.88/2,178,120.44 = 742,311.16/x
  3. Step 3: Cross multiply
    1,451,784.88x = 2,178,120.44 × 742,311.16
  4. Step 4: Simplify right side
    1,451,784.88x = 1,616,843,110,436.11
  5. Step 5: Solve for x
    x = 1,616,843,110,436.11/1,451,784.88
  6. Step 6: Final answer
    x = 1,113,693.31

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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.