Home / 890,900.82-1,337,051.07-491,817.06

Finding the Fourth Proportional to 890,900.82, 1,337,051.07 and 491,817.06

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Solution

The fourth proportional to 890,900.82, 1,337,051.07 and 491,817.06 is: 738,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,900.82 : 1,337,051.07 = 491,817.06 : x
  2. Step 2: Convert to fraction form
    890,900.82/1,337,051.07 = 491,817.06/x
  3. Step 3: Cross multiply
    890,900.82x = 1,337,051.07 × 491,817.06
  4. Step 4: Simplify right side
    890,900.82x = 657,584,526,317.25
  5. Step 5: Solve for x
    x = 657,584,526,317.25/890,900.82
  6. Step 6: Final answer
    x = 738,111.93

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Half scale
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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.