Home / 646,530.28-892,209.38-360,053.80

Finding the Fourth Proportional to 646,530.28, 892,209.38 and 360,053.80

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Solution

The fourth proportional to 646,530.28, 892,209.38 and 360,053.80 is: 496,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,530.28 : 892,209.38 = 360,053.80 : x
  2. Step 2: Convert to fraction form
    646,530.28/892,209.38 = 360,053.80/x
  3. Step 3: Cross multiply
    646,530.28x = 892,209.38 × 360,053.80
  4. Step 4: Simplify right side
    646,530.28x = 321,243,377,664.64
  5. Step 5: Solve for x
    x = 321,243,377,664.64/646,530.28
  6. Step 6: Final answer
    x = 496,872.90

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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.