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Finding the Fourth Proportional to 572,358.24, 858,666.96 and 305,978.40

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Solution

The fourth proportional to 572,358.24, 858,666.96 and 305,978.40 is: 459,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,358.24 : 858,666.96 = 305,978.40 : x
  2. Step 2: Convert to fraction form
    572,358.24/858,666.96 = 305,978.40/x
  3. Step 3: Cross multiply
    572,358.24x = 858,666.96 × 305,978.40
  4. Step 4: Simplify right side
    572,358.24x = 262,733,542,553.66
  5. Step 5: Solve for x
    x = 262,733,542,553.66/572,358.24
  6. Step 6: Final answer
    x = 459,036.88

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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.