Home / 874,928.20-1,311,672.30-395,187.40

Finding the Fourth Proportional to 874,928.20, 1,311,672.30 and 395,187.40

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Solution

The fourth proportional to 874,928.20, 1,311,672.30 and 395,187.40 is: 592,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,928.20 : 1,311,672.30 = 395,187.40 : x
  2. Step 2: Convert to fraction form
    874,928.20/1,311,672.30 = 395,187.40/x
  3. Step 3: Cross multiply
    874,928.20x = 1,311,672.30 × 395,187.40
  4. Step 4: Simplify right side
    874,928.20x = 518,356,365,889.02
  5. Step 5: Solve for x
    x = 518,356,365,889.02/874,928.20
  6. Step 6: Final answer
    x = 592,455.89

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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.