Home / 1,208,123.84-1,667,230.08-664,283.36

Finding the Fourth Proportional to 1,208,123.84, 1,667,230.08 and 664,283.36

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Solution

The fourth proportional to 1,208,123.84, 1,667,230.08 and 664,283.36 is: 916,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,123.84 : 1,667,230.08 = 664,283.36 : x
  2. Step 2: Convert to fraction form
    1,208,123.84/1,667,230.08 = 664,283.36/x
  3. Step 3: Cross multiply
    1,208,123.84x = 1,667,230.08 × 664,283.36
  4. Step 4: Simplify right side
    1,208,123.84x = 1,107,513,199,435.47
  5. Step 5: Solve for x
    x = 1,107,513,199,435.47/1,208,123.84
  6. Step 6: Final answer
    x = 916,721.58

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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.