Home / 854,797.40-1,282,196.10-815,431.40

Finding the Fourth Proportional to 854,797.40, 1,282,196.10 and 815,431.40

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Solution

The fourth proportional to 854,797.40, 1,282,196.10 and 815,431.40 is: 1,223,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,797.40 : 1,282,196.10 = 815,431.40 : x
  2. Step 2: Convert to fraction form
    854,797.40/1,282,196.10 = 815,431.40/x
  3. Step 3: Cross multiply
    854,797.40x = 1,282,196.10 × 815,431.40
  4. Step 4: Simplify right side
    854,797.40x = 1,045,542,960,897.54
  5. Step 5: Solve for x
    x = 1,045,542,960,897.54/854,797.40
  6. Step 6: Final answer
    x = 1,223,147.10

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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.