Home / 916,179.85-1,264,335.81-508,308.43

Finding the Fourth Proportional to 916,179.85, 1,264,335.81 and 508,308.43

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Solution

The fourth proportional to 916,179.85, 1,264,335.81 and 508,308.43 is: 701,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,179.85 : 1,264,335.81 = 508,308.43 : x
  2. Step 2: Convert to fraction form
    916,179.85/1,264,335.81 = 508,308.43/x
  3. Step 3: Cross multiply
    916,179.85x = 1,264,335.81 × 508,308.43
  4. Step 4: Simplify right side
    916,179.85x = 642,672,550,573.88
  5. Step 5: Solve for x
    x = 642,672,550,573.88/916,179.85
  6. Step 6: Final answer
    x = 701,469.86

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1.5x scale

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.