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Finding the Fourth Proportional to 657,366.32, 986,361.75 and 455,273.42

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Solution

The fourth proportional to 657,366.32, 986,361.75 and 455,273.42 is: 683,126.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,366.32 : 986,361.75 = 455,273.42 : x
  2. Step 2: Convert to fraction form
    657,366.32/986,361.75 = 455,273.42/x
  3. Step 3: Cross multiply
    657,366.32x = 986,361.75 × 455,273.42
  4. Step 4: Simplify right side
    657,366.32x = 449,064,282,347.88
  5. Step 5: Solve for x
    x = 449,064,282,347.88/657,366.32
  6. Step 6: Final answer
    x = 683,126.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.