Home / 847,069.60-1,270,334.96-278,319.60

Finding the Fourth Proportional to 847,069.60, 1,270,334.96 and 278,319.60

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Solution

The fourth proportional to 847,069.60, 1,270,334.96 and 278,319.60 is: 417,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,069.60 : 1,270,334.96 = 278,319.60 : x
  2. Step 2: Convert to fraction form
    847,069.60/1,270,334.96 = 278,319.60/x
  3. Step 3: Cross multiply
    847,069.60x = 1,270,334.96 × 278,319.60
  4. Step 4: Simplify right side
    847,069.60x = 353,559,117,933.22
  5. Step 5: Solve for x
    x = 353,559,117,933.22/847,069.60
  6. Step 6: Final answer
    x = 417,390.87

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1.5x scale

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.