Home / 646,529.28-892,208-360,052.80

Finding the Fourth Proportional to 646,529.28, 892,208 and 360,052.80

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Solution

The fourth proportional to 646,529.28, 892,208 and 360,052.80 is: 496,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,529.28 : 892,208 = 360,052.80 : x
  2. Step 2: Convert to fraction form
    646,529.28/892,208 = 360,052.80/x
  3. Step 3: Cross multiply
    646,529.28x = 892,208 × 360,052.80
  4. Step 4: Simplify right side
    646,529.28x = 321,241,988,582.40
  5. Step 5: Solve for x
    x = 321,241,988,582.40/646,529.28
  6. Step 6: Final answer
    x = 496,871.52

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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.