Home / 920,850.88-1,380,632.96-408,237.20

Finding the Fourth Proportional to 920,850.88, 1,380,632.96 and 408,237.20

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Solution

The fourth proportional to 920,850.88, 1,380,632.96 and 408,237.20 is: 612,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,850.88 : 1,380,632.96 = 408,237.20 : x
  2. Step 2: Convert to fraction form
    920,850.88/1,380,632.96 = 408,237.20/x
  3. Step 3: Cross multiply
    920,850.88x = 1,380,632.96 × 408,237.20
  4. Step 4: Simplify right side
    920,850.88x = 563,625,733,818.11
  5. Step 5: Solve for x
    x = 563,625,733,818.11/920,850.88
  6. Step 6: Final answer
    x = 612,070.58

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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.