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Finding the Fourth Proportional to 655,218.95, 904,052.54 and 368,634.47

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Solution

The fourth proportional to 655,218.95, 904,052.54 and 368,634.47 is: 508,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,218.95 : 904,052.54 = 368,634.47 : x
  2. Step 2: Convert to fraction form
    655,218.95/904,052.54 = 368,634.47/x
  3. Step 3: Cross multiply
    655,218.95x = 904,052.54 × 368,634.47
  4. Step 4: Simplify right side
    655,218.95x = 333,264,928,935.05
  5. Step 5: Solve for x
    x = 333,264,928,935.05/655,218.95
  6. Step 6: Final answer
    x = 508,631.40

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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.