Home / 643,573.20-965,048.76-377,420.16

Finding the Fourth Proportional to 643,573.20, 965,048.76 and 377,420.16

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Solution

The fourth proportional to 643,573.20, 965,048.76 and 377,420.16 is: 565,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,573.20 : 965,048.76 = 377,420.16 : x
  2. Step 2: Convert to fraction form
    643,573.20/965,048.76 = 377,420.16/x
  3. Step 3: Cross multiply
    643,573.20x = 965,048.76 × 377,420.16
  4. Step 4: Simplify right side
    643,573.20x = 364,228,857,407.00
  5. Step 5: Solve for x
    x = 364,228,857,407.00/643,573.20
  6. Step 6: Final answer
    x = 565,947.83

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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.