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Finding the Fourth Proportional to 611,503.46, 843,880.68 and 356,805.44

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Solution

The fourth proportional to 611,503.46, 843,880.68 and 356,805.44 is: 492,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,503.46 : 843,880.68 = 356,805.44 : x
  2. Step 2: Convert to fraction form
    611,503.46/843,880.68 = 356,805.44/x
  3. Step 3: Cross multiply
    611,503.46x = 843,880.68 × 356,805.44
  4. Step 4: Simplify right side
    611,503.46x = 301,101,217,334.90
  5. Step 5: Solve for x
    x = 301,101,217,334.90/611,503.46
  6. Step 6: Final answer
    x = 492,394.95

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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.