Home / 740,071.68-1,110,107.78-260,653.53

Finding the Fourth Proportional to 740,071.68, 1,110,107.78 and 260,653.53

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Solution

The fourth proportional to 740,071.68, 1,110,107.78 and 260,653.53 is: 390,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,071.68 : 1,110,107.78 = 260,653.53 : x
  2. Step 2: Convert to fraction form
    740,071.68/1,110,107.78 = 260,653.53/x
  3. Step 3: Cross multiply
    740,071.68x = 1,110,107.78 × 260,653.53
  4. Step 4: Simplify right side
    740,071.68x = 289,353,511,537.46
  5. Step 5: Solve for x
    x = 289,353,511,537.46/740,071.68
  6. Step 6: Final answer
    x = 390,980.39

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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.