Home / 1,418,762.72-2,128,084.54-660,343.32

Finding the Fourth Proportional to 1,418,762.72, 2,128,084.54 and 660,343.32

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Solution

The fourth proportional to 1,418,762.72, 2,128,084.54 and 660,343.32 is: 990,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,762.72 : 2,128,084.54 = 660,343.32 : x
  2. Step 2: Convert to fraction form
    1,418,762.72/2,128,084.54 = 660,343.32/x
  3. Step 3: Cross multiply
    1,418,762.72x = 2,128,084.54 × 660,343.32
  4. Step 4: Simplify right side
    1,418,762.72x = 1,405,266,410,384.27
  5. Step 5: Solve for x
    x = 1,405,266,410,384.27/1,418,762.72
  6. Step 6: Final answer
    x = 990,487.27

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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.