Home / 1,262,362.24-1,893,560.16-420,914.40

Finding the Fourth Proportional to 1,262,362.24, 1,893,560.16 and 420,914.40

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Solution

The fourth proportional to 1,262,362.24, 1,893,560.16 and 420,914.40 is: 631,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,362.24 : 1,893,560.16 = 420,914.40 : x
  2. Step 2: Convert to fraction form
    1,262,362.24/1,893,560.16 = 420,914.40/x
  3. Step 3: Cross multiply
    1,262,362.24x = 1,893,560.16 × 420,914.40
  4. Step 4: Simplify right side
    1,262,362.24x = 797,026,738,610.30
  5. Step 5: Solve for x
    x = 797,026,738,610.30/1,262,362.24
  6. Step 6: Final answer
    x = 631,377.20

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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.