Home / 1,071,991.63-1,607,741.87-639,831.02

Finding the Fourth Proportional to 1,071,991.63, 1,607,741.87 and 639,831.02

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Solution

The fourth proportional to 1,071,991.63, 1,607,741.87 and 639,831.02 is: 959,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,991.63 : 1,607,741.87 = 639,831.02 : x
  2. Step 2: Convert to fraction form
    1,071,991.63/1,607,741.87 = 639,831.02/x
  3. Step 3: Cross multiply
    1,071,991.63x = 1,607,741.87 × 639,831.02
  4. Step 4: Simplify right side
    1,071,991.63x = 1,028,683,109,340.94
  5. Step 5: Solve for x
    x = 1,028,683,109,340.94/1,071,991.63
  6. Step 6: Final answer
    x = 959,599.94

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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.