Home / 1,207,478.66-1,666,358.04-663,604.56

Finding the Fourth Proportional to 1,207,478.66, 1,666,358.04 and 663,604.56

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Solution

The fourth proportional to 1,207,478.66, 1,666,358.04 and 663,604.56 is: 915,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,478.66 : 1,666,358.04 = 663,604.56 : x
  2. Step 2: Convert to fraction form
    1,207,478.66/1,666,358.04 = 663,604.56/x
  3. Step 3: Cross multiply
    1,207,478.66x = 1,666,358.04 × 663,604.56
  4. Step 4: Simplify right side
    1,207,478.66x = 1,105,802,793,936.66
  5. Step 5: Solve for x
    x = 1,105,802,793,936.66/1,207,478.66
  6. Step 6: Final answer
    x = 915,794.90

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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.