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Finding the Fourth Proportional to 624,182.40, 861,368.22 and 352,338.66

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Solution

The fourth proportional to 624,182.40, 861,368.22 and 352,338.66 is: 486,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,182.40 : 861,368.22 = 352,338.66 : x
  2. Step 2: Convert to fraction form
    624,182.40/861,368.22 = 352,338.66/x
  3. Step 3: Cross multiply
    624,182.40x = 861,368.22 × 352,338.66
  4. Step 4: Simplify right side
    624,182.40x = 303,493,324,401.39
  5. Step 5: Solve for x
    x = 303,493,324,401.39/624,182.40
  6. Step 6: Final answer
    x = 486,225.38

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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.