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Finding the Fourth Proportional to 653,135.72, 901,323.70 and 366,655.72

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Solution

The fourth proportional to 653,135.72, 901,323.70 and 366,655.72 is: 505,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,135.72 : 901,323.70 = 366,655.72 : x
  2. Step 2: Convert to fraction form
    653,135.72/901,323.70 = 366,655.72/x
  3. Step 3: Cross multiply
    653,135.72x = 901,323.70 × 366,655.72
  4. Step 4: Simplify right side
    653,135.72x = 330,475,490,176.56
  5. Step 5: Solve for x
    x = 330,475,490,176.56/653,135.72
  6. Step 6: Final answer
    x = 505,982.88

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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.