Home / 879,365.09-1,212,560.18-572,873.11

Finding the Fourth Proportional to 879,365.09, 1,212,560.18 and 572,873.11

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Solution

The fourth proportional to 879,365.09, 1,212,560.18 and 572,873.11 is: 789,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,365.09 : 1,212,560.18 = 572,873.11 : x
  2. Step 2: Convert to fraction form
    879,365.09/1,212,560.18 = 572,873.11/x
  3. Step 3: Cross multiply
    879,365.09x = 1,212,560.18 × 572,873.11
  4. Step 4: Simplify right side
    879,365.09x = 694,643,121,378.76
  5. Step 5: Solve for x
    x = 694,643,121,378.76/879,365.09
  6. Step 6: Final answer
    x = 789,937.11

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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.