Home / 708,286.10-977,406.41-385,989.32

Finding the Fourth Proportional to 708,286.10, 977,406.41 and 385,989.32

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Solution

The fourth proportional to 708,286.10, 977,406.41 and 385,989.32 is: 532,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,286.10 : 977,406.41 = 385,989.32 : x
  2. Step 2: Convert to fraction form
    708,286.10/977,406.41 = 385,989.32/x
  3. Step 3: Cross multiply
    708,286.10x = 977,406.41 × 385,989.32
  4. Step 4: Simplify right side
    708,286.10x = 377,268,438,968.03
  5. Step 5: Solve for x
    x = 377,268,438,968.03/708,286.10
  6. Step 6: Final answer
    x = 532,649.79

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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.