Home / 499,358.10-689,117.30-269,914.91

Finding the Fourth Proportional to 499,358.10, 689,117.30 and 269,914.91

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Solution

The fourth proportional to 499,358.10, 689,117.30 and 269,914.91 is: 372,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,358.10 : 689,117.30 = 269,914.91 : x
  2. Step 2: Convert to fraction form
    499,358.10/689,117.30 = 269,914.91/x
  3. Step 3: Cross multiply
    499,358.10x = 689,117.30 × 269,914.91
  4. Step 4: Simplify right side
    499,358.10x = 186,003,034,008.94
  5. Step 5: Solve for x
    x = 186,003,034,008.94/499,358.10
  6. Step 6: Final answer
    x = 372,484.26

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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.