Home / 1,424,837.46-1,966,216.64-780,246.55

Finding the Fourth Proportional to 1,424,837.46, 1,966,216.64 and 780,246.55

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Solution

The fourth proportional to 1,424,837.46, 1,966,216.64 and 780,246.55 is: 1,076,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,837.46 : 1,966,216.64 = 780,246.55 : x
  2. Step 2: Convert to fraction form
    1,424,837.46/1,966,216.64 = 780,246.55/x
  3. Step 3: Cross multiply
    1,424,837.46x = 1,966,216.64 × 780,246.55
  4. Step 4: Simplify right side
    1,424,837.46x = 1,534,133,749,912.59
  5. Step 5: Solve for x
    x = 1,534,133,749,912.59/1,424,837.46
  6. Step 6: Final answer
    x = 1,076,707.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.