Home / 884,136.70-1,326,205.05-285,117.40

Finding the Fourth Proportional to 884,136.70, 1,326,205.05 and 285,117.40

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Solution

The fourth proportional to 884,136.70, 1,326,205.05 and 285,117.40 is: 427,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,136.70 : 1,326,205.05 = 285,117.40 : x
  2. Step 2: Convert to fraction form
    884,136.70/1,326,205.05 = 285,117.40/x
  3. Step 3: Cross multiply
    884,136.70x = 1,326,205.05 × 285,117.40
  4. Step 4: Simplify right side
    884,136.70x = 378,124,135,722.87
  5. Step 5: Solve for x
    x = 378,124,135,722.87/884,136.70
  6. Step 6: Final answer
    x = 427,676.10

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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.