Home / 808,645.20-1,212,967.80-572,449.20

Finding the Fourth Proportional to 808,645.20, 1,212,967.80 and 572,449.20

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Solution

The fourth proportional to 808,645.20, 1,212,967.80 and 572,449.20 is: 858,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,645.20 : 1,212,967.80 = 572,449.20 : x
  2. Step 2: Convert to fraction form
    808,645.20/1,212,967.80 = 572,449.20/x
  3. Step 3: Cross multiply
    808,645.20x = 1,212,967.80 × 572,449.20
  4. Step 4: Simplify right side
    808,645.20x = 694,362,446,735.76
  5. Step 5: Solve for x
    x = 694,362,446,735.76/808,645.20
  6. Step 6: Final answer
    x = 858,673.80

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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.