Home / 679,621.44-937,767.20-377,807.68

Finding the Fourth Proportional to 679,621.44, 937,767.20 and 377,807.68

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Solution

The fourth proportional to 679,621.44, 937,767.20 and 377,807.68 is: 521,313.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,621.44 : 937,767.20 = 377,807.68 : x
  2. Step 2: Convert to fraction form
    679,621.44/937,767.20 = 377,807.68/x
  3. Step 3: Cross multiply
    679,621.44x = 937,767.20 × 377,807.68
  4. Step 4: Simplify right side
    679,621.44x = 354,295,650,212.10
  5. Step 5: Solve for x
    x = 354,295,650,212.10/679,621.44
  6. Step 6: Final answer
    x = 521,313.23

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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.