Home / 1,643,148.90-2,464,982.55-521,331.30

Finding the Fourth Proportional to 1,643,148.90, 2,464,982.55 and 521,331.30

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Solution

The fourth proportional to 1,643,148.90, 2,464,982.55 and 521,331.30 is: 782,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,148.90 : 2,464,982.55 = 521,331.30 : x
  2. Step 2: Convert to fraction form
    1,643,148.90/2,464,982.55 = 521,331.30/x
  3. Step 3: Cross multiply
    1,643,148.90x = 2,464,982.55 × 521,331.30
  4. Step 4: Simplify right side
    1,643,148.90x = 1,285,072,557,268.82
  5. Step 5: Solve for x
    x = 1,285,072,557,268.82/1,643,148.90
  6. Step 6: Final answer
    x = 782,079.19

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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.