Home / 1,208,423.40-1,667,586.12-664,557.51

Finding the Fourth Proportional to 1,208,423.40, 1,667,586.12 and 664,557.51

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Solution

The fourth proportional to 1,208,423.40, 1,667,586.12 and 664,557.51 is: 917,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,423.40 : 1,667,586.12 = 664,557.51 : x
  2. Step 2: Convert to fraction form
    1,208,423.40/1,667,586.12 = 664,557.51/x
  3. Step 3: Cross multiply
    1,208,423.40x = 1,667,586.12 × 664,557.51
  4. Step 4: Simplify right side
    1,208,423.40x = 1,108,206,874,610.36
  5. Step 5: Solve for x
    x = 1,108,206,874,610.36/1,208,423.40
  6. Step 6: Final answer
    x = 917,068.37

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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.