Home / 819,980.20-1,229,435.70-735,999.40

Finding the Fourth Proportional to 819,980.20, 1,229,435.70 and 735,999.40

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Solution

The fourth proportional to 819,980.20, 1,229,435.70 and 735,999.40 is: 1,103,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,980.20 : 1,229,435.70 = 735,999.40 : x
  2. Step 2: Convert to fraction form
    819,980.20/1,229,435.70 = 735,999.40/x
  3. Step 3: Cross multiply
    819,980.20x = 1,229,435.70 × 735,999.40
  4. Step 4: Simplify right side
    819,980.20x = 904,863,937,538.58
  5. Step 5: Solve for x
    x = 904,863,937,538.58/819,980.20
  6. Step 6: Final answer
    x = 1,103,519.25

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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.