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Finding the Fourth Proportional to 642,561.40, 962,675.70 and 523,588.60

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Solution

The fourth proportional to 642,561.40, 962,675.70 and 523,588.60 is: 784,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,561.40 : 962,675.70 = 523,588.60 : x
  2. Step 2: Convert to fraction form
    642,561.40/962,675.70 = 523,588.60/x
  3. Step 3: Cross multiply
    642,561.40x = 962,675.70 × 523,588.60
  4. Step 4: Simplify right side
    642,561.40x = 504,046,022,017.02
  5. Step 5: Solve for x
    x = 504,046,022,017.02/642,561.40
  6. Step 6: Final answer
    x = 784,432.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.