Home / 847,911.28-1,170,182.84-485,449.24

Finding the Fourth Proportional to 847,911.28, 1,170,182.84 and 485,449.24

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Solution

The fourth proportional to 847,911.28, 1,170,182.84 and 485,449.24 is: 669,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,911.28 : 1,170,182.84 = 485,449.24 : x
  2. Step 2: Convert to fraction form
    847,911.28/1,170,182.84 = 485,449.24/x
  3. Step 3: Cross multiply
    847,911.28x = 1,170,182.84 × 485,449.24
  4. Step 4: Simplify right side
    847,911.28x = 568,064,370,339.04
  5. Step 5: Solve for x
    x = 568,064,370,339.04/847,911.28
  6. Step 6: Final answer
    x = 669,957.32

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1.5x scale

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.