Home / 739,978.24-1,021,173.15-400,446.49

Finding the Fourth Proportional to 739,978.24, 1,021,173.15 and 400,446.49

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Solution

The fourth proportional to 739,978.24, 1,021,173.15 and 400,446.49 is: 552,617.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,978.24 : 1,021,173.15 = 400,446.49 : x
  2. Step 2: Convert to fraction form
    739,978.24/1,021,173.15 = 400,446.49/x
  3. Step 3: Cross multiply
    739,978.24x = 1,021,173.15 × 400,446.49
  4. Step 4: Simplify right side
    739,978.24x = 408,925,203,599.74
  5. Step 5: Solve for x
    x = 408,925,203,599.74/739,978.24
  6. Step 6: Final answer
    x = 552,617.88

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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.