Home / 1,321,119.66-1,823,148.63-777,275.94

Finding the Fourth Proportional to 1,321,119.66, 1,823,148.63 and 777,275.94

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Solution

The fourth proportional to 1,321,119.66, 1,823,148.63 and 777,275.94 is: 1,072,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,119.66 : 1,823,148.63 = 777,275.94 : x
  2. Step 2: Convert to fraction form
    1,321,119.66/1,823,148.63 = 777,275.94/x
  3. Step 3: Cross multiply
    1,321,119.66x = 1,823,148.63 × 777,275.94
  4. Step 4: Simplify right side
    1,321,119.66x = 1,417,089,565,142.96
  5. Step 5: Solve for x
    x = 1,417,089,565,142.96/1,321,119.66
  6. Step 6: Final answer
    x = 1,072,642.86

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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.