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Finding the Fourth Proportional to 655,240.96, 904,261.62 and 368,779.60

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Solution

The fourth proportional to 655,240.96, 904,261.62 and 368,779.60 is: 508,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,240.96 : 904,261.62 = 368,779.60 : x
  2. Step 2: Convert to fraction form
    655,240.96/904,261.62 = 368,779.60/x
  3. Step 3: Cross multiply
    655,240.96x = 904,261.62 × 368,779.60
  4. Step 4: Simplify right side
    655,240.96x = 333,473,238,518.95
  5. Step 5: Solve for x
    x = 333,473,238,518.95/655,240.96
  6. Step 6: Final answer
    x = 508,932.22

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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.