Home / 696,669.90-961,414.43-521,930.49

Finding the Fourth Proportional to 696,669.90, 961,414.43 and 521,930.49

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Solution

The fourth proportional to 696,669.90, 961,414.43 and 521,930.49 is: 720,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,669.90 : 961,414.43 = 521,930.49 : x
  2. Step 2: Convert to fraction form
    696,669.90/961,414.43 = 521,930.49/x
  3. Step 3: Cross multiply
    696,669.90x = 961,414.43 × 521,930.49
  4. Step 4: Simplify right side
    696,669.90x = 501,791,501,933.32
  5. Step 5: Solve for x
    x = 501,791,501,933.32/696,669.90
  6. Step 6: Final answer
    x = 720,271.54

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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.