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Finding the Fourth Proportional to 620,747.82, 856,604.40 and 362,648.70

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Solution

The fourth proportional to 620,747.82, 856,604.40 and 362,648.70 is: 500,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,747.82 : 856,604.40 = 362,648.70 : x
  2. Step 2: Convert to fraction form
    620,747.82/856,604.40 = 362,648.70/x
  3. Step 3: Cross multiply
    620,747.82x = 856,604.40 × 362,648.70
  4. Step 4: Simplify right side
    620,747.82x = 310,646,472,074.28
  5. Step 5: Solve for x
    x = 310,646,472,074.28/620,747.82
  6. Step 6: Final answer
    x = 500,439.09

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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.