Home / 892,903.20-1,232,215.65-485,012.94

Finding the Fourth Proportional to 892,903.20, 1,232,215.65 and 485,012.94

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Solution

The fourth proportional to 892,903.20, 1,232,215.65 and 485,012.94 is: 669,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,903.20 : 1,232,215.65 = 485,012.94 : x
  2. Step 2: Convert to fraction form
    892,903.20/1,232,215.65 = 485,012.94/x
  3. Step 3: Cross multiply
    892,903.20x = 1,232,215.65 × 485,012.94
  4. Step 4: Simplify right side
    892,903.20x = 597,640,535,120.51
  5. Step 5: Solve for x
    x = 597,640,535,120.51/892,903.20
  6. Step 6: Final answer
    x = 669,322.87

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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.