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Finding the Fourth Proportional to 476,560.88, 657,801.63 and 306,795

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Solution

The fourth proportional to 476,560.88, 657,801.63 and 306,795 is: 423,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,560.88 : 657,801.63 = 306,795 : x
  2. Step 2: Convert to fraction form
    476,560.88/657,801.63 = 306,795/x
  3. Step 3: Cross multiply
    476,560.88x = 657,801.63 × 306,795
  4. Step 4: Simplify right side
    476,560.88x = 201,810,251,075.85
  5. Step 5: Solve for x
    x = 201,810,251,075.85/476,560.88
  6. Step 6: Final answer
    x = 423,472.13

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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.