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Finding the Fourth Proportional to 647,296.20, 971,381.70 and 362,986.20

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Solution

The fourth proportional to 647,296.20, 971,381.70 and 362,986.20 is: 544,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,296.20 : 971,381.70 = 362,986.20 : x
  2. Step 2: Convert to fraction form
    647,296.20/971,381.70 = 362,986.20/x
  3. Step 3: Cross multiply
    647,296.20x = 971,381.70 × 362,986.20
  4. Step 4: Simplify right side
    647,296.20x = 352,598,152,032.54
  5. Step 5: Solve for x
    x = 352,598,152,032.54/647,296.20
  6. Step 6: Final answer
    x = 544,724.58

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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.