Home / 446,539.20-669,808.80-278,577.60

Finding the Fourth Proportional to 446,539.20, 669,808.80 and 278,577.60

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Solution

The fourth proportional to 446,539.20, 669,808.80 and 278,577.60 is: 417,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,539.20 : 669,808.80 = 278,577.60 : x
  2. Step 2: Convert to fraction form
    446,539.20/669,808.80 = 278,577.60/x
  3. Step 3: Cross multiply
    446,539.20x = 669,808.80 × 278,577.60
  4. Step 4: Simplify right side
    446,539.20x = 186,593,727,962.88
  5. Step 5: Solve for x
    x = 186,593,727,962.88/446,539.20
  6. Step 6: Final answer
    x = 417,866.40

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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.