Home / 743,102.40-1,114,434.90-210,669.96

Finding the Fourth Proportional to 743,102.40, 1,114,434.90 and 210,669.96

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Solution

The fourth proportional to 743,102.40, 1,114,434.90 and 210,669.96 is: 315,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,102.40 : 1,114,434.90 = 210,669.96 : x
  2. Step 2: Convert to fraction form
    743,102.40/1,114,434.90 = 210,669.96/x
  3. Step 3: Cross multiply
    743,102.40x = 1,114,434.90 × 210,669.96
  4. Step 4: Simplify right side
    743,102.40x = 234,777,955,805.60
  5. Step 5: Solve for x
    x = 234,777,955,805.60/743,102.40
  6. Step 6: Final answer
    x = 315,942.94

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Double scale
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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.