Home / 385,827.40-578,546.70-228,104.20

Finding the Fourth Proportional to 385,827.40, 578,546.70 and 228,104.20

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Solution

The fourth proportional to 385,827.40, 578,546.70 and 228,104.20 is: 342,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,827.40 : 578,546.70 = 228,104.20 : x
  2. Step 2: Convert to fraction form
    385,827.40/578,546.70 = 228,104.20/x
  3. Step 3: Cross multiply
    385,827.40x = 578,546.70 × 228,104.20
  4. Step 4: Simplify right side
    385,827.40x = 131,968,932,166.14
  5. Step 5: Solve for x
    x = 131,968,932,166.14/385,827.40
  6. Step 6: Final answer
    x = 342,041.37

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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.