Home / 643,574.20-965,050.26-377,421.16

Finding the Fourth Proportional to 643,574.20, 965,050.26 and 377,421.16

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Solution

The fourth proportional to 643,574.20, 965,050.26 and 377,421.16 is: 565,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,574.20 : 965,050.26 = 377,421.16 : x
  2. Step 2: Convert to fraction form
    643,574.20/965,050.26 = 377,421.16/x
  3. Step 3: Cross multiply
    643,574.20x = 965,050.26 × 377,421.16
  4. Step 4: Simplify right side
    643,574.20x = 364,230,388,587.50
  5. Step 5: Solve for x
    x = 364,230,388,587.50/643,574.20
  6. Step 6: Final answer
    x = 565,949.33

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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.