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Finding the Fourth Proportional to 658,635.40, 986,570.70 and 362,801.80

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Solution

The fourth proportional to 658,635.40, 986,570.70 and 362,801.80 is: 543,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,635.40 : 986,570.70 = 362,801.80 : x
  2. Step 2: Convert to fraction form
    658,635.40/986,570.70 = 362,801.80/x
  3. Step 3: Cross multiply
    658,635.40x = 986,570.70 × 362,801.80
  4. Step 4: Simplify right side
    658,635.40x = 357,929,625,787.26
  5. Step 5: Solve for x
    x = 357,929,625,787.26/658,635.40
  6. Step 6: Final answer
    x = 543,441.22

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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.