Home / 945,855.40-1,418,783.10-448,191.40

Finding the Fourth Proportional to 945,855.40, 1,418,783.10 and 448,191.40

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Solution

The fourth proportional to 945,855.40, 1,418,783.10 and 448,191.40 is: 672,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,855.40 : 1,418,783.10 = 448,191.40 : x
  2. Step 2: Convert to fraction form
    945,855.40/1,418,783.10 = 448,191.40/x
  3. Step 3: Cross multiply
    945,855.40x = 1,418,783.10 × 448,191.40
  4. Step 4: Simplify right side
    945,855.40x = 635,886,383,885.34
  5. Step 5: Solve for x
    x = 635,886,383,885.34/945,855.40
  6. Step 6: Final answer
    x = 672,287.10

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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.