Home / 1,385,634.42-2,078,427-438,980.55

Finding the Fourth Proportional to 1,385,634.42, 2,078,427 and 438,980.55

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Solution

The fourth proportional to 1,385,634.42, 2,078,427 and 438,980.55 is: 658,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,634.42 : 2,078,427 = 438,980.55 : x
  2. Step 2: Convert to fraction form
    1,385,634.42/2,078,427 = 438,980.55/x
  3. Step 3: Cross multiply
    1,385,634.42x = 2,078,427 × 438,980.55
  4. Step 4: Simplify right side
    1,385,634.42x = 912,389,027,594.85
  5. Step 5: Solve for x
    x = 912,389,027,594.85/1,385,634.42
  6. Step 6: Final answer
    x = 658,463.02

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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.