Home / 685,369.77-1,028,164.82-235,980.15

Finding the Fourth Proportional to 685,369.77, 1,028,164.82 and 235,980.15

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Solution

The fourth proportional to 685,369.77, 1,028,164.82 and 235,980.15 is: 354,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,369.77 : 1,028,164.82 = 235,980.15 : x
  2. Step 2: Convert to fraction form
    685,369.77/1,028,164.82 = 235,980.15/x
  3. Step 3: Cross multiply
    685,369.77x = 1,028,164.82 × 235,980.15
  4. Step 4: Simplify right side
    685,369.77x = 242,626,487,268.42
  5. Step 5: Solve for x
    x = 242,626,487,268.42/685,369.77
  6. Step 6: Final answer
    x = 354,008.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.