Home / 502,860.98-754,285.10-123,786.45

Finding the Fourth Proportional to 502,860.98, 754,285.10 and 123,786.45

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Solution

The fourth proportional to 502,860.98, 754,285.10 and 123,786.45 is: 185,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,860.98 : 754,285.10 = 123,786.45 : x
  2. Step 2: Convert to fraction form
    502,860.98/754,285.10 = 123,786.45/x
  3. Step 3: Cross multiply
    502,860.98x = 754,285.10 × 123,786.45
  4. Step 4: Simplify right side
    502,860.98x = 93,370,274,197.96
  5. Step 5: Solve for x
    x = 93,370,274,197.96/502,860.98
  6. Step 6: Final answer
    x = 185,678.10

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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.