Home / 406,318.20-560,441.61-278,772.36

Finding the Fourth Proportional to 406,318.20, 560,441.61 and 278,772.36

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Solution

The fourth proportional to 406,318.20, 560,441.61 and 278,772.36 is: 384,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,318.20 : 560,441.61 = 278,772.36 : x
  2. Step 2: Convert to fraction form
    406,318.20/560,441.61 = 278,772.36/x
  3. Step 3: Cross multiply
    406,318.20x = 560,441.61 × 278,772.36
  4. Step 4: Simplify right side
    406,318.20x = 156,235,630,261.90
  5. Step 5: Solve for x
    x = 156,235,630,261.90/406,318.20
  6. Step 6: Final answer
    x = 384,515.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.