Home / 689,018.48-950,932.92-387,212.24

Finding the Fourth Proportional to 689,018.48, 950,932.92 and 387,212.24

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Solution

The fourth proportional to 689,018.48, 950,932.92 and 387,212.24 is: 534,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,018.48 : 950,932.92 = 387,212.24 : x
  2. Step 2: Convert to fraction form
    689,018.48/950,932.92 = 387,212.24/x
  3. Step 3: Cross multiply
    689,018.48x = 950,932.92 × 387,212.24
  4. Step 4: Simplify right side
    689,018.48x = 368,212,866,042.94
  5. Step 5: Solve for x
    x = 368,212,866,042.94/689,018.48
  6. Step 6: Final answer
    x = 534,402.02

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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.