Home / 546,907.40-819,972.30-209,817.80

Finding the Fourth Proportional to 546,907.40, 819,972.30 and 209,817.80

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Solution

The fourth proportional to 546,907.40, 819,972.30 and 209,817.80 is: 314,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,907.40 : 819,972.30 = 209,817.80 : x
  2. Step 2: Convert to fraction form
    546,907.40/819,972.30 = 209,817.80/x
  3. Step 3: Cross multiply
    546,907.40x = 819,972.30 × 209,817.80
  4. Step 4: Simplify right side
    546,907.40x = 172,044,784,046.94
  5. Step 5: Solve for x
    x = 172,044,784,046.94/546,907.40
  6. Step 6: Final answer
    x = 314,577.54

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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.