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Finding the Fourth Proportional to 624,262.66, 861,493.53 and 352,384.90

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Solution

The fourth proportional to 624,262.66, 861,493.53 and 352,384.90 is: 486,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,262.66 : 861,493.53 = 352,384.90 : x
  2. Step 2: Convert to fraction form
    624,262.66/861,493.53 = 352,384.90/x
  3. Step 3: Cross multiply
    624,262.66x = 861,493.53 × 352,384.90
  4. Step 4: Simplify right side
    624,262.66x = 303,577,311,419.70
  5. Step 5: Solve for x
    x = 303,577,311,419.70/624,262.66
  6. Step 6: Final answer
    x = 486,297.40

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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.