Home / 461,308.38-692,077.77-128,881.50

Finding the Fourth Proportional to 461,308.38, 692,077.77 and 128,881.50

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Solution

The fourth proportional to 461,308.38, 692,077.77 and 128,881.50 is: 193,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,308.38 : 692,077.77 = 128,881.50 : x
  2. Step 2: Convert to fraction form
    461,308.38/692,077.77 = 128,881.50/x
  3. Step 3: Cross multiply
    461,308.38x = 692,077.77 × 128,881.50
  4. Step 4: Simplify right side
    461,308.38x = 89,196,021,114.26
  5. Step 5: Solve for x
    x = 89,196,021,114.26/461,308.38
  6. Step 6: Final answer
    x = 193,354.43

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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.