Home / 513,911.64-709,274.06-296,078.83

Finding the Fourth Proportional to 513,911.64, 709,274.06 and 296,078.83

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Solution

The fourth proportional to 513,911.64, 709,274.06 and 296,078.83 is: 408,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,911.64 : 709,274.06 = 296,078.83 : x
  2. Step 2: Convert to fraction form
    513,911.64/709,274.06 = 296,078.83/x
  3. Step 3: Cross multiply
    513,911.64x = 709,274.06 × 296,078.83
  4. Step 4: Simplify right side
    513,911.64x = 210,001,037,345.98
  5. Step 5: Solve for x
    x = 210,001,037,345.98/513,911.64
  6. Step 6: Final answer
    x = 408,632.58

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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.