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Finding the Fourth Proportional to 547,489.80, 819,852.30 and 436,897.80

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Solution

The fourth proportional to 547,489.80, 819,852.30 and 436,897.80 is: 654,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,489.80 : 819,852.30 = 436,897.80 : x
  2. Step 2: Convert to fraction form
    547,489.80/819,852.30 = 436,897.80/x
  3. Step 3: Cross multiply
    547,489.80x = 819,852.30 × 436,897.80
  4. Step 4: Simplify right side
    547,489.80x = 358,191,666,194.94
  5. Step 5: Solve for x
    x = 358,191,666,194.94/547,489.80
  6. Step 6: Final answer
    x = 654,243.54

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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.