Home / 558,043.43-836,400.53-388,646.61

Finding the Fourth Proportional to 558,043.43, 836,400.53 and 388,646.61

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Solution

The fourth proportional to 558,043.43, 836,400.53 and 388,646.61 is: 582,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,043.43 : 836,400.53 = 388,646.61 : x
  2. Step 2: Convert to fraction form
    558,043.43/836,400.53 = 388,646.61/x
  3. Step 3: Cross multiply
    558,043.43x = 836,400.53 × 388,646.61
  4. Step 4: Simplify right side
    558,043.43x = 325,064,228,421.82
  5. Step 5: Solve for x
    x = 325,064,228,421.82/558,043.43
  6. Step 6: Final answer
    x = 582,507.05

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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.