Home / 1,208,263.69-1,667,346.81-664,422.40

Finding the Fourth Proportional to 1,208,263.69, 1,667,346.81 and 664,422.40

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Solution

The fourth proportional to 1,208,263.69, 1,667,346.81 and 664,422.40 is: 916,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,263.69 : 1,667,346.81 = 664,422.40 : x
  2. Step 2: Convert to fraction form
    1,208,263.69/1,667,346.81 = 664,422.40/x
  3. Step 3: Cross multiply
    1,208,263.69x = 1,667,346.81 × 664,422.40
  4. Step 4: Simplify right side
    1,208,263.69x = 1,107,822,569,132.54
  5. Step 5: Solve for x
    x = 1,107,822,569,132.54/1,208,263.69
  6. Step 6: Final answer
    x = 916,871.52

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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.