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Finding the Fourth Proportional to 655,244.64, 904,516.61 and 440,509.25

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Solution

The fourth proportional to 655,244.64, 904,516.61 and 440,509.25 is: 608,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,244.64 : 904,516.61 = 440,509.25 : x
  2. Step 2: Convert to fraction form
    655,244.64/904,516.61 = 440,509.25/x
  3. Step 3: Cross multiply
    655,244.64x = 904,516.61 × 440,509.25
  4. Step 4: Simplify right side
    655,244.64x = 398,447,933,542.39
  5. Step 5: Solve for x
    x = 398,447,933,542.39/655,244.64
  6. Step 6: Final answer
    x = 608,090.34

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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.