Home / 939,831.38-1,296,969.80-510,111.51

Finding the Fourth Proportional to 939,831.38, 1,296,969.80 and 510,111.51

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Solution

The fourth proportional to 939,831.38, 1,296,969.80 and 510,111.51 is: 703,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,831.38 : 1,296,969.80 = 510,111.51 : x
  2. Step 2: Convert to fraction form
    939,831.38/1,296,969.80 = 510,111.51/x
  3. Step 3: Cross multiply
    939,831.38x = 1,296,969.80 × 510,111.51
  4. Step 4: Simplify right side
    939,831.38x = 661,599,223,102.40
  5. Step 5: Solve for x
    x = 661,599,223,102.40/939,831.38
  6. Step 6: Final answer
    x = 703,955.24

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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.