Home / 729,272.64-1,006,420.32-423,324.48

Finding the Fourth Proportional to 729,272.64, 1,006,420.32 and 423,324.48

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Solution

The fourth proportional to 729,272.64, 1,006,420.32 and 423,324.48 is: 584,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,272.64 : 1,006,420.32 = 423,324.48 : x
  2. Step 2: Convert to fraction form
    729,272.64/1,006,420.32 = 423,324.48/x
  3. Step 3: Cross multiply
    729,272.64x = 1,006,420.32 × 423,324.48
  4. Step 4: Simplify right side
    729,272.64x = 426,042,358,625.43
  5. Step 5: Solve for x
    x = 426,042,358,625.43/729,272.64
  6. Step 6: Final answer
    x = 584,201.76

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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.