Home / 511,210.27-705,501-281,767.24

Finding the Fourth Proportional to 511,210.27, 705,501 and 281,767.24

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Solution

The fourth proportional to 511,210.27, 705,501 and 281,767.24 is: 388,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,210.27 : 705,501 = 281,767.24 : x
  2. Step 2: Convert to fraction form
    511,210.27/705,501 = 281,767.24/x
  3. Step 3: Cross multiply
    511,210.27x = 705,501 × 281,767.24
  4. Step 4: Simplify right side
    511,210.27x = 198,787,069,587.24
  5. Step 5: Solve for x
    x = 198,787,069,587.24/511,210.27
  6. Step 6: Final answer
    x = 388,855.78

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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.