Home / 728,049.40-1,091,636.70-373,755.40

Finding the Fourth Proportional to 728,049.40, 1,091,636.70 and 373,755.40

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Solution

The fourth proportional to 728,049.40, 1,091,636.70 and 373,755.40 is: 560,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,049.40 : 1,091,636.70 = 373,755.40 : x
  2. Step 2: Convert to fraction form
    728,049.40/1,091,636.70 = 373,755.40/x
  3. Step 3: Cross multiply
    728,049.40x = 1,091,636.70 × 373,755.40
  4. Step 4: Simplify right side
    728,049.40x = 408,005,111,463.18
  5. Step 5: Solve for x
    x = 408,005,111,463.18/728,049.40
  6. Step 6: Final answer
    x = 560,408.55

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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.