Home / 511,087.15-705,301.23-307,141.18

Finding the Fourth Proportional to 511,087.15, 705,301.23 and 307,141.18

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Solution

The fourth proportional to 511,087.15, 705,301.23 and 307,141.18 is: 423,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,087.15 : 705,301.23 = 307,141.18 : x
  2. Step 2: Convert to fraction form
    511,087.15/705,301.23 = 307,141.18/x
  3. Step 3: Cross multiply
    511,087.15x = 705,301.23 × 307,141.18
  4. Step 4: Simplify right side
    511,087.15x = 216,627,052,037.65
  5. Step 5: Solve for x
    x = 216,627,052,037.65/511,087.15
  6. Step 6: Final answer
    x = 423,855.41

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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.