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Finding the Fourth Proportional to 547,062.86, 754,947.62 and 305,345.37

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Solution

The fourth proportional to 547,062.86, 754,947.62 and 305,345.37 is: 421,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,062.86 : 754,947.62 = 305,345.37 : x
  2. Step 2: Convert to fraction form
    547,062.86/754,947.62 = 305,345.37/x
  3. Step 3: Cross multiply
    547,062.86x = 754,947.62 × 305,345.37
  4. Step 4: Simplify right side
    547,062.86x = 230,519,759,826.82
  5. Step 5: Solve for x
    x = 230,519,759,826.82/547,062.86
  6. Step 6: Final answer
    x = 421,377.10

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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.