Home / 689,963.76-951,835.32-498,674.16

Finding the Fourth Proportional to 689,963.76, 951,835.32 and 498,674.16

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Solution

The fourth proportional to 689,963.76, 951,835.32 and 498,674.16 is: 687,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,963.76 : 951,835.32 = 498,674.16 : x
  2. Step 2: Convert to fraction form
    689,963.76/951,835.32 = 498,674.16/x
  3. Step 3: Cross multiply
    689,963.76x = 951,835.32 × 498,674.16
  4. Step 4: Simplify right side
    689,963.76x = 474,655,678,659.33
  5. Step 5: Solve for x
    x = 474,655,678,659.33/689,963.76
  6. Step 6: Final answer
    x = 687,942.91

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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.