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Finding the Fourth Proportional to 712,828.62, 982,915.44 and 454,296.42

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Solution

The fourth proportional to 712,828.62, 982,915.44 and 454,296.42 is: 626,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,828.62 : 982,915.44 = 454,296.42 : x
  2. Step 2: Convert to fraction form
    712,828.62/982,915.44 = 454,296.42/x
  3. Step 3: Cross multiply
    712,828.62x = 982,915.44 × 454,296.42
  4. Step 4: Simplify right side
    712,828.62x = 446,534,965,554.73
  5. Step 5: Solve for x
    x = 446,534,965,554.73/712,828.62
  6. Step 6: Final answer
    x = 626,426.82

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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.