Home / 1,389,935.70-2,084,903.55-443,402.10

Finding the Fourth Proportional to 1,389,935.70, 2,084,903.55 and 443,402.10

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Solution

The fourth proportional to 1,389,935.70, 2,084,903.55 and 443,402.10 is: 665,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,935.70 : 2,084,903.55 = 443,402.10 : x
  2. Step 2: Convert to fraction form
    1,389,935.70/2,084,903.55 = 443,402.10/x
  3. Step 3: Cross multiply
    1,389,935.70x = 2,084,903.55 × 443,402.10
  4. Step 4: Simplify right side
    1,389,935.70x = 924,450,612,367.46
  5. Step 5: Solve for x
    x = 924,450,612,367.46/1,389,935.70
  6. Step 6: Final answer
    x = 665,103.15

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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.