Home / 1,301,121.54-1,795,509.08-720,370.50

Finding the Fourth Proportional to 1,301,121.54, 1,795,509.08 and 720,370.50

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Solution

The fourth proportional to 1,301,121.54, 1,795,509.08 and 720,370.50 is: 994,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,121.54 : 1,795,509.08 = 720,370.50 : x
  2. Step 2: Convert to fraction form
    1,301,121.54/1,795,509.08 = 720,370.50/x
  3. Step 3: Cross multiply
    1,301,121.54x = 1,795,509.08 × 720,370.50
  4. Step 4: Simplify right side
    1,301,121.54x = 1,293,431,773,714.14
  5. Step 5: Solve for x
    x = 1,293,431,773,714.14/1,301,121.54
  6. Step 6: Final answer
    x = 994,089.89

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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.