Home / 727,729.40-1,091,205.30-254,430.20

Finding the Fourth Proportional to 727,729.40, 1,091,205.30 and 254,430.20

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Solution

The fourth proportional to 727,729.40, 1,091,205.30 and 254,430.20 is: 381,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,729.40 : 1,091,205.30 = 254,430.20 : x
  2. Step 2: Convert to fraction form
    727,729.40/1,091,205.30 = 254,430.20/x
  3. Step 3: Cross multiply
    727,729.40x = 1,091,205.30 × 254,430.20
  4. Step 4: Simplify right side
    727,729.40x = 277,635,582,720.06
  5. Step 5: Solve for x
    x = 277,635,582,720.06/727,729.40
  6. Step 6: Final answer
    x = 381,509.37

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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.