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Finding the Fourth Proportional to 643,713.40, 966,030.90 and 362,932.60

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Solution

The fourth proportional to 643,713.40, 966,030.90 and 362,932.60 is: 544,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,713.40 : 966,030.90 = 362,932.60 : x
  2. Step 2: Convert to fraction form
    643,713.40/966,030.90 = 362,932.60/x
  3. Step 3: Cross multiply
    643,713.40x = 966,030.90 × 362,932.60
  4. Step 4: Simplify right side
    643,713.40x = 350,604,106,217.34
  5. Step 5: Solve for x
    x = 350,604,106,217.34/643,713.40
  6. Step 6: Final answer
    x = 544,658.70

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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.