Home / 884,135.70-1,326,203.55-285,116.40

Finding the Fourth Proportional to 884,135.70, 1,326,203.55 and 285,116.40

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Solution

The fourth proportional to 884,135.70, 1,326,203.55 and 285,116.40 is: 427,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,135.70 : 1,326,203.55 = 285,116.40 : x
  2. Step 2: Convert to fraction form
    884,135.70/1,326,203.55 = 285,116.40/x
  3. Step 3: Cross multiply
    884,135.70x = 1,326,203.55 × 285,116.40
  4. Step 4: Simplify right side
    884,135.70x = 378,122,381,843.22
  5. Step 5: Solve for x
    x = 378,122,381,843.22/884,135.70
  6. Step 6: Final answer
    x = 427,674.60

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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.