Home / 521,890.14-720,208.35-295,579.38

Finding the Fourth Proportional to 521,890.14, 720,208.35 and 295,579.38

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Solution

The fourth proportional to 521,890.14, 720,208.35 and 295,579.38 is: 407,899.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,890.14 : 720,208.35 = 295,579.38 : x
  2. Step 2: Convert to fraction form
    521,890.14/720,208.35 = 295,579.38/x
  3. Step 3: Cross multiply
    521,890.14x = 720,208.35 × 295,579.38
  4. Step 4: Simplify right side
    521,890.14x = 212,878,737,563.82
  5. Step 5: Solve for x
    x = 212,878,737,563.82/521,890.14
  6. Step 6: Final answer
    x = 407,899.52

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1.5x scale

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.