Home / 1,643,427.80-2,465,141.70-521,610.20

Finding the Fourth Proportional to 1,643,427.80, 2,465,141.70 and 521,610.20

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Solution

The fourth proportional to 1,643,427.80, 2,465,141.70 and 521,610.20 is: 782,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,427.80 : 2,465,141.70 = 521,610.20 : x
  2. Step 2: Convert to fraction form
    1,643,427.80/2,465,141.70 = 521,610.20/x
  3. Step 3: Cross multiply
    1,643,427.80x = 2,465,141.70 × 521,610.20
  4. Step 4: Simplify right side
    1,643,427.80x = 1,285,843,055,165.34
  5. Step 5: Solve for x
    x = 1,285,843,055,165.34/1,643,427.80
  6. Step 6: Final answer
    x = 782,415.30

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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.