Home / 1,112,443.52-1,667,675.64-402,313.68

Finding the Fourth Proportional to 1,112,443.52, 1,667,675.64 and 402,313.68

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Solution

The fourth proportional to 1,112,443.52, 1,667,675.64 and 402,313.68 is: 603,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,443.52 : 1,667,675.64 = 402,313.68 : x
  2. Step 2: Convert to fraction form
    1,112,443.52/1,667,675.64 = 402,313.68/x
  3. Step 3: Cross multiply
    1,112,443.52x = 1,667,675.64 × 402,313.68
  4. Step 4: Simplify right side
    1,112,443.52x = 670,928,723,774.76
  5. Step 5: Solve for x
    x = 670,928,723,774.76/1,112,443.52
  6. Step 6: Final answer
    x = 603,112.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.