Home / 695,659.08-1,042,129.64-479,479.40

Finding the Fourth Proportional to 695,659.08, 1,042,129.64 and 479,479.40

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Solution

The fourth proportional to 695,659.08, 1,042,129.64 and 479,479.40 is: 718,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,659.08 : 1,042,129.64 = 479,479.40 : x
  2. Step 2: Convert to fraction form
    695,659.08/1,042,129.64 = 479,479.40/x
  3. Step 3: Cross multiply
    695,659.08x = 1,042,129.64 × 479,479.40
  4. Step 4: Simplify right side
    695,659.08x = 499,679,686,901.37
  5. Step 5: Solve for x
    x = 499,679,686,901.37/695,659.08
  6. Step 6: Final answer
    x = 718,282.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.