Home / 939,635.03-1,296,696.29-509,915.15

Finding the Fourth Proportional to 939,635.03, 1,296,696.29 and 509,915.15

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Solution

The fourth proportional to 939,635.03, 1,296,696.29 and 509,915.15 is: 703,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,635.03 : 1,296,696.29 = 509,915.15 : x
  2. Step 2: Convert to fraction form
    939,635.03/1,296,696.29 = 509,915.15/x
  3. Step 3: Cross multiply
    939,635.03x = 1,296,696.29 × 509,915.15
  4. Step 4: Simplify right side
    939,635.03x = 661,205,083,219.79
  5. Step 5: Solve for x
    x = 661,205,083,219.79/939,635.03
  6. Step 6: Final answer
    x = 703,682.88

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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.