Home / 1,157,345.82-1,728,979.58-749,213.14

Finding the Fourth Proportional to 1,157,345.82, 1,728,979.58 and 749,213.14

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Solution

The fourth proportional to 1,157,345.82, 1,728,979.58 and 749,213.14 is: 1,119,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,345.82 : 1,728,979.58 = 749,213.14 : x
  2. Step 2: Convert to fraction form
    1,157,345.82/1,728,979.58 = 749,213.14/x
  3. Step 3: Cross multiply
    1,157,345.82x = 1,728,979.58 × 749,213.14
  4. Step 4: Simplify right side
    1,157,345.82x = 1,295,374,216,381.62
  5. Step 5: Solve for x
    x = 1,295,374,216,381.62/1,157,345.82
  6. Step 6: Final answer
    x = 1,119,262.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.