Home / 803,428.48-1,108,725.76-445,732.48

Finding the Fourth Proportional to 803,428.48, 1,108,725.76 and 445,732.48

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Solution

The fourth proportional to 803,428.48, 1,108,725.76 and 445,732.48 is: 615,107.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,428.48 : 1,108,725.76 = 445,732.48 : x
  2. Step 2: Convert to fraction form
    803,428.48/1,108,725.76 = 445,732.48/x
  3. Step 3: Cross multiply
    803,428.48x = 1,108,725.76 × 445,732.48
  4. Step 4: Simplify right side
    803,428.48x = 494,195,082,644.69
  5. Step 5: Solve for x
    x = 494,195,082,644.69/803,428.48
  6. Step 6: Final answer
    x = 615,107.75

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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.