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Finding the Fourth Proportional to 653,145.06, 901,332.27 and 366,657.78

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Solution

The fourth proportional to 653,145.06, 901,332.27 and 366,657.78 is: 505,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,145.06 : 901,332.27 = 366,657.78 : x
  2. Step 2: Convert to fraction form
    653,145.06/901,332.27 = 366,657.78/x
  3. Step 3: Cross multiply
    653,145.06x = 901,332.27 × 366,657.78
  4. Step 4: Simplify right side
    653,145.06x = 330,480,489,160.56
  5. Step 5: Solve for x
    x = 330,480,489,160.56/653,145.06
  6. Step 6: Final answer
    x = 505,983.29

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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.