Home / 385,296.45-577,782.03-115,462.86

Finding the Fourth Proportional to 385,296.45, 577,782.03 and 115,462.86

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Solution

The fourth proportional to 385,296.45, 577,782.03 and 115,462.86 is: 173,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,296.45 : 577,782.03 = 115,462.86 : x
  2. Step 2: Convert to fraction form
    385,296.45/577,782.03 = 115,462.86/x
  3. Step 3: Cross multiply
    385,296.45x = 577,782.03 × 115,462.86
  4. Step 4: Simplify right side
    385,296.45x = 66,712,365,640.41
  5. Step 5: Solve for x
    x = 66,712,365,640.41/385,296.45
  6. Step 6: Final answer
    x = 173,145.55

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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.