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Finding the Fourth Proportional to 476,720.88, 657,335.70 and 304,412.28

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Solution

The fourth proportional to 476,720.88, 657,335.70 and 304,412.28 is: 419,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,720.88 : 657,335.70 = 304,412.28 : x
  2. Step 2: Convert to fraction form
    476,720.88/657,335.70 = 304,412.28/x
  3. Step 3: Cross multiply
    476,720.88x = 657,335.70 × 304,412.28
  4. Step 4: Simplify right side
    476,720.88x = 200,101,059,162.40
  5. Step 5: Solve for x
    x = 200,101,059,162.40/476,720.88
  6. Step 6: Final answer
    x = 419,744.69

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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.