Home / 878,503.05-1,212,362.37-572,776.92

Finding the Fourth Proportional to 878,503.05, 1,212,362.37 and 572,776.92

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Solution

The fourth proportional to 878,503.05, 1,212,362.37 and 572,776.92 is: 790,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,503.05 : 1,212,362.37 = 572,776.92 : x
  2. Step 2: Convert to fraction form
    878,503.05/1,212,362.37 = 572,776.92/x
  3. Step 3: Cross multiply
    878,503.05x = 1,212,362.37 × 572,776.92
  4. Step 4: Simplify right side
    878,503.05x = 694,413,184,212.50
  5. Step 5: Solve for x
    x = 694,413,184,212.50/878,503.05
  6. Step 6: Final answer
    x = 790,450.51

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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.