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Finding the Fourth Proportional to 546,985, 754,865.22 and 308,521

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Solution

The fourth proportional to 546,985, 754,865.22 and 308,521 is: 425,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,985 : 754,865.22 = 308,521 : x
  2. Step 2: Convert to fraction form
    546,985/754,865.22 = 308,521/x
  3. Step 3: Cross multiply
    546,985x = 754,865.22 × 308,521
  4. Step 4: Simplify right side
    546,985x = 232,891,772,539.62
  5. Step 5: Solve for x
    x = 232,891,772,539.62/546,985
  6. Step 6: Final answer
    x = 425,773.60

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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.