Home / 806,436.40-1,112,897.46-443,857.72

Finding the Fourth Proportional to 806,436.40, 1,112,897.46 and 443,857.72

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Solution

The fourth proportional to 806,436.40, 1,112,897.46 and 443,857.72 is: 612,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,436.40 : 1,112,897.46 = 443,857.72 : x
  2. Step 2: Convert to fraction form
    806,436.40/1,112,897.46 = 443,857.72/x
  3. Step 3: Cross multiply
    806,436.40x = 1,112,897.46 × 443,857.72
  4. Step 4: Simplify right side
    806,436.40x = 493,968,129,189.39
  5. Step 5: Solve for x
    x = 493,968,129,189.39/806,436.40
  6. Step 6: Final answer
    x = 612,532.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.