Home / 865,795.50-1,298,712.70-297,175.50

Finding the Fourth Proportional to 865,795.50, 1,298,712.70 and 297,175.50

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Solution

The fourth proportional to 865,795.50, 1,298,712.70 and 297,175.50 is: 445,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,795.50 : 1,298,712.70 = 297,175.50 : x
  2. Step 2: Convert to fraction form
    865,795.50/1,298,712.70 = 297,175.50/x
  3. Step 3: Cross multiply
    865,795.50x = 1,298,712.70 × 297,175.50
  4. Step 4: Simplify right side
    865,795.50x = 385,945,595,978.85
  5. Step 5: Solve for x
    x = 385,945,595,978.85/865,795.50
  6. Step 6: Final answer
    x = 445,769.93

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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.