Home / 679,619.45-936,492.89-525,723.09

Finding the Fourth Proportional to 679,619.45, 936,492.89 and 525,723.09

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Solution

The fourth proportional to 679,619.45, 936,492.89 and 525,723.09 is: 724,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,619.45 : 936,492.89 = 525,723.09 : x
  2. Step 2: Convert to fraction form
    679,619.45/936,492.89 = 525,723.09/x
  3. Step 3: Cross multiply
    679,619.45x = 936,492.89 × 525,723.09
  4. Step 4: Simplify right side
    679,619.45x = 492,335,933,265.22
  5. Step 5: Solve for x
    x = 492,335,933,265.22/679,619.45
  6. Step 6: Final answer
    x = 724,428.85

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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.