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Finding the Fourth Proportional to 655,256.78, 904,283.45 and 368,795.42

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Solution

The fourth proportional to 655,256.78, 904,283.45 and 368,795.42 is: 508,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,256.78 : 904,283.45 = 368,795.42 : x
  2. Step 2: Convert to fraction form
    655,256.78/904,283.45 = 368,795.42/x
  3. Step 3: Cross multiply
    655,256.78x = 904,283.45 × 368,795.42
  4. Step 4: Simplify right side
    655,256.78x = 333,495,592,897.82
  5. Step 5: Solve for x
    x = 333,495,592,897.82/655,256.78
  6. Step 6: Final answer
    x = 508,954.05

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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.