Home / 497,289.78-686,241.45-304,021.17

Finding the Fourth Proportional to 497,289.78, 686,241.45 and 304,021.17

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Solution

The fourth proportional to 497,289.78, 686,241.45 and 304,021.17 is: 419,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,289.78 : 686,241.45 = 304,021.17 : x
  2. Step 2: Convert to fraction form
    497,289.78/686,241.45 = 304,021.17/x
  3. Step 3: Cross multiply
    497,289.78x = 686,241.45 × 304,021.17
  4. Step 4: Simplify right side
    497,289.78x = 208,631,928,531.50
  5. Step 5: Solve for x
    x = 208,631,928,531.50/497,289.78
  6. Step 6: Final answer
    x = 419,537.94

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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.