Home / 670,381.20-1,005,596.10-197,114.40

Finding the Fourth Proportional to 670,381.20, 1,005,596.10 and 197,114.40

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Solution

The fourth proportional to 670,381.20, 1,005,596.10 and 197,114.40 is: 295,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,381.20 : 1,005,596.10 = 197,114.40 : x
  2. Step 2: Convert to fraction form
    670,381.20/1,005,596.10 = 197,114.40/x
  3. Step 3: Cross multiply
    670,381.20x = 1,005,596.10 × 197,114.40
  4. Step 4: Simplify right side
    670,381.20x = 198,217,471,893.84
  5. Step 5: Solve for x
    x = 198,217,471,893.84/670,381.20
  6. Step 6: Final answer
    x = 295,678.75

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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.