Home / 920,916.42-1,270,527.57-558,078.54

Finding the Fourth Proportional to 920,916.42, 1,270,527.57 and 558,078.54

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Solution

The fourth proportional to 920,916.42, 1,270,527.57 and 558,078.54 is: 769,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,916.42 : 1,270,527.57 = 558,078.54 : x
  2. Step 2: Convert to fraction form
    920,916.42/1,270,527.57 = 558,078.54/x
  3. Step 3: Cross multiply
    920,916.42x = 1,270,527.57 × 558,078.54
  4. Step 4: Simplify right side
    920,916.42x = 709,054,171,295.35
  5. Step 5: Solve for x
    x = 709,054,171,295.35/920,916.42
  6. Step 6: Final answer
    x = 769,944.11

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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.