Home / 762,428.52-1,052,124.48-422,928.36

Finding the Fourth Proportional to 762,428.52, 1,052,124.48 and 422,928.36

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Solution

The fourth proportional to 762,428.52, 1,052,124.48 and 422,928.36 is: 583,626.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,428.52 : 1,052,124.48 = 422,928.36 : x
  2. Step 2: Convert to fraction form
    762,428.52/1,052,124.48 = 422,928.36/x
  3. Step 3: Cross multiply
    762,428.52x = 1,052,124.48 × 422,928.36
  4. Step 4: Simplify right side
    762,428.52x = 444,973,280,842.25
  5. Step 5: Solve for x
    x = 444,973,280,842.25/762,428.52
  6. Step 6: Final answer
    x = 583,626.23

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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.