Home / 918,918.10-1,378,463.59-270,494.71

Finding the Fourth Proportional to 918,918.10, 1,378,463.59 and 270,494.71

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Solution

The fourth proportional to 918,918.10, 1,378,463.59 and 270,494.71 is: 405,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,918.10 : 1,378,463.59 = 270,494.71 : x
  2. Step 2: Convert to fraction form
    918,918.10/1,378,463.59 = 270,494.71/x
  3. Step 3: Cross multiply
    918,918.10x = 1,378,463.59 × 270,494.71
  4. Step 4: Simplify right side
    918,918.10x = 372,867,113,177.49
  5. Step 5: Solve for x
    x = 372,867,113,177.49/918,918.10
  6. Step 6: Final answer
    x = 405,767.52

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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.