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Finding the Fourth Proportional to 655,222.96, 904,058.07 and 368,638.48

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Solution

The fourth proportional to 655,222.96, 904,058.07 and 368,638.48 is: 508,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,222.96 : 904,058.07 = 368,638.48 : x
  2. Step 2: Convert to fraction form
    655,222.96/904,058.07 = 368,638.48/x
  3. Step 3: Cross multiply
    655,222.96x = 904,058.07 × 368,638.48
  4. Step 4: Simplify right side
    655,222.96x = 333,270,592,756.53
  5. Step 5: Solve for x
    x = 333,270,592,756.53/655,222.96
  6. Step 6: Final answer
    x = 508,636.93

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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.