Home / 689,733.36-951,822.90-387,927.36

Finding the Fourth Proportional to 689,733.36, 951,822.90 and 387,927.36

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Solution

The fourth proportional to 689,733.36, 951,822.90 and 387,927.36 is: 535,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,733.36 : 951,822.90 = 387,927.36 : x
  2. Step 2: Convert to fraction form
    689,733.36/951,822.90 = 387,927.36/x
  3. Step 3: Cross multiply
    689,733.36x = 951,822.90 × 387,927.36
  4. Step 4: Simplify right side
    689,733.36x = 369,238,144,784.54
  5. Step 5: Solve for x
    x = 369,238,144,784.54/689,733.36
  6. Step 6: Final answer
    x = 535,334.62

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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.