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Finding the Fourth Proportional to 655,156.08, 904,105.80 and 368,653.68

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Solution

The fourth proportional to 655,156.08, 904,105.80 and 368,653.68 is: 508,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,156.08 : 904,105.80 = 368,653.68 : x
  2. Step 2: Convert to fraction form
    655,156.08/904,105.80 = 368,653.68/x
  3. Step 3: Cross multiply
    655,156.08x = 904,105.80 × 368,653.68
  4. Step 4: Simplify right side
    655,156.08x = 333,301,930,279.34
  5. Step 5: Solve for x
    x = 333,301,930,279.34/655,156.08
  6. Step 6: Final answer
    x = 508,736.68

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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.