Home / 812,671.75-1,121,484.20-468,506.04

Finding the Fourth Proportional to 812,671.75, 1,121,484.20 and 468,506.04

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Solution

The fourth proportional to 812,671.75, 1,121,484.20 and 468,506.04 is: 646,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,671.75 : 1,121,484.20 = 468,506.04 : x
  2. Step 2: Convert to fraction form
    812,671.75/1,121,484.20 = 468,506.04/x
  3. Step 3: Cross multiply
    812,671.75x = 1,121,484.20 × 468,506.04
  4. Step 4: Simplify right side
    812,671.75x = 525,422,121,464.57
  5. Step 5: Solve for x
    x = 525,422,121,464.57/812,671.75
  6. Step 6: Final answer
    x = 646,536.71

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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.