Home / 847,073.60-1,270,340.96-278,323.60

Finding the Fourth Proportional to 847,073.60, 1,270,340.96 and 278,323.60

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Solution

The fourth proportional to 847,073.60, 1,270,340.96 and 278,323.60 is: 417,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,073.60 : 1,270,340.96 = 278,323.60 : x
  2. Step 2: Convert to fraction form
    847,073.60/1,270,340.96 = 278,323.60/x
  3. Step 3: Cross multiply
    847,073.60x = 1,270,340.96 × 278,323.60
  4. Step 4: Simplify right side
    847,073.60x = 353,565,869,214.66
  5. Step 5: Solve for x
    x = 353,565,869,214.66/847,073.60
  6. Step 6: Final answer
    x = 417,396.87

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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.