Home / 425,479.29-638,352.75-125,962.50

Finding the Fourth Proportional to 425,479.29, 638,352.75 and 125,962.50

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Solution

The fourth proportional to 425,479.29, 638,352.75 and 125,962.50 is: 188,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,479.29 : 638,352.75 = 125,962.50 : x
  2. Step 2: Convert to fraction form
    425,479.29/638,352.75 = 125,962.50/x
  3. Step 3: Cross multiply
    425,479.29x = 638,352.75 × 125,962.50
  4. Step 4: Simplify right side
    425,479.29x = 80,408,508,271.88
  5. Step 5: Solve for x
    x = 80,408,508,271.88/425,479.29
  6. Step 6: Final answer
    x = 188,983.37

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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.