Home / 687,999.06-1,032,246.27-308,890.26

Finding the Fourth Proportional to 687,999.06, 1,032,246.27 and 308,890.26

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Solution

The fourth proportional to 687,999.06, 1,032,246.27 and 308,890.26 is: 463,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,999.06 : 1,032,246.27 = 308,890.26 : x
  2. Step 2: Convert to fraction form
    687,999.06/1,032,246.27 = 308,890.26/x
  3. Step 3: Cross multiply
    687,999.06x = 1,032,246.27 × 308,890.26
  4. Step 4: Simplify right side
    687,999.06x = 318,850,818,724.33
  5. Step 5: Solve for x
    x = 318,850,818,724.33/687,999.06
  6. Step 6: Final answer
    x = 463,446.59

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Double scale
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Similar ratio
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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.