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Finding the Fourth Proportional to 712,754.55, 983,601.23 and 426,274.63

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Solution

The fourth proportional to 712,754.55, 983,601.23 and 426,274.63 is: 588,258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,754.55 : 983,601.23 = 426,274.63 : x
  2. Step 2: Convert to fraction form
    712,754.55/983,601.23 = 426,274.63/x
  3. Step 3: Cross multiply
    712,754.55x = 983,601.23 × 426,274.63
  4. Step 4: Simplify right side
    712,754.55x = 419,284,245,795.42
  5. Step 5: Solve for x
    x = 419,284,245,795.42/712,754.55
  6. Step 6: Final answer
    x = 588,258.95

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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.