Home / 920,606.52-1,380,877.13-280,884.42

Finding the Fourth Proportional to 920,606.52, 1,380,877.13 and 280,884.42

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Solution

The fourth proportional to 920,606.52, 1,380,877.13 and 280,884.42 is: 421,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,606.52 : 1,380,877.13 = 280,884.42 : x
  2. Step 2: Convert to fraction form
    920,606.52/1,380,877.13 = 280,884.42/x
  3. Step 3: Cross multiply
    920,606.52x = 1,380,877.13 × 280,884.42
  4. Step 4: Simplify right side
    920,606.52x = 387,866,870,346.89
  5. Step 5: Solve for x
    x = 387,866,870,346.89/920,606.52
  6. Step 6: Final answer
    x = 421,316.67

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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.