Home / 878,709.45-1,317,590.02-398,675.25

Finding the Fourth Proportional to 878,709.45, 1,317,590.02 and 398,675.25

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Solution

The fourth proportional to 878,709.45, 1,317,590.02 and 398,675.25 is: 597,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,709.45 : 1,317,590.02 = 398,675.25 : x
  2. Step 2: Convert to fraction form
    878,709.45/1,317,590.02 = 398,675.25/x
  3. Step 3: Cross multiply
    878,709.45x = 1,317,590.02 × 398,675.25
  4. Step 4: Simplify right side
    878,709.45x = 525,290,530,621.01
  5. Step 5: Solve for x
    x = 525,290,530,621.01/878,709.45
  6. Step 6: Final answer
    x = 597,797.75

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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.