Home / 570,628.66-787,467.06-315,979.84

Finding the Fourth Proportional to 570,628.66, 787,467.06 and 315,979.84

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Solution

The fourth proportional to 570,628.66, 787,467.06 and 315,979.84 is: 436,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,628.66 : 787,467.06 = 315,979.84 : x
  2. Step 2: Convert to fraction form
    570,628.66/787,467.06 = 315,979.84/x
  3. Step 3: Cross multiply
    570,628.66x = 787,467.06 × 315,979.84
  4. Step 4: Simplify right side
    570,628.66x = 248,823,715,624.07
  5. Step 5: Solve for x
    x = 248,823,715,624.07/570,628.66
  6. Step 6: Final answer
    x = 436,051.91

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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.