Home / 939,821.28-1,296,954.24-510,101.28

Finding the Fourth Proportional to 939,821.28, 1,296,954.24 and 510,101.28

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Solution

The fourth proportional to 939,821.28, 1,296,954.24 and 510,101.28 is: 703,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,821.28 : 1,296,954.24 = 510,101.28 : x
  2. Step 2: Convert to fraction form
    939,821.28/1,296,954.24 = 510,101.28/x
  3. Step 3: Cross multiply
    939,821.28x = 1,296,954.24 × 510,101.28
  4. Step 4: Simplify right side
    939,821.28x = 661,578,017,925.43
  5. Step 5: Solve for x
    x = 661,578,017,925.43/939,821.28
  6. Step 6: Final answer
    x = 703,940.24

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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.