Home / 511,088.15-705,302.61-307,142.18

Finding the Fourth Proportional to 511,088.15, 705,302.61 and 307,142.18

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Solution

The fourth proportional to 511,088.15, 705,302.61 and 307,142.18 is: 423,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,088.15 : 705,302.61 = 307,142.18 : x
  2. Step 2: Convert to fraction form
    511,088.15/705,302.61 = 307,142.18/x
  3. Step 3: Cross multiply
    511,088.15x = 705,302.61 × 307,142.18
  4. Step 4: Simplify right side
    511,088.15x = 216,628,181,195.09
  5. Step 5: Solve for x
    x = 216,628,181,195.09/511,088.15
  6. Step 6: Final answer
    x = 423,856.79

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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.