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Finding the Fourth Proportional to 548,640.51, 757,125.02 and 306,927.12

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Solution

The fourth proportional to 548,640.51, 757,125.02 and 306,927.12 is: 423,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,640.51 : 757,125.02 = 306,927.12 : x
  2. Step 2: Convert to fraction form
    548,640.51/757,125.02 = 306,927.12/x
  3. Step 3: Cross multiply
    548,640.51x = 757,125.02 × 306,927.12
  4. Step 4: Simplify right side
    548,640.51x = 232,382,201,868.54
  5. Step 5: Solve for x
    x = 232,382,201,868.54/548,640.51
  6. Step 6: Final answer
    x = 423,560.05

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1.5x scale

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.