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Finding the Fourth Proportional to 655,244.89, 904,516.95 and 440,509.51

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Solution

The fourth proportional to 655,244.89, 904,516.95 and 440,509.51 is: 608,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,244.89 : 904,516.95 = 440,509.51 : x
  2. Step 2: Convert to fraction form
    655,244.89/904,516.95 = 440,509.51/x
  3. Step 3: Cross multiply
    655,244.89x = 904,516.95 × 440,509.51
  4. Step 4: Simplify right side
    655,244.89x = 398,448,318,431.19
  5. Step 5: Solve for x
    x = 398,448,318,431.19/655,244.89
  6. Step 6: Final answer
    x = 608,090.69

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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.