Home / 865,985.26-1,298,645.70-297,260.38

Finding the Fourth Proportional to 865,985.26, 1,298,645.70 and 297,260.38

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Solution

The fourth proportional to 865,985.26, 1,298,645.70 and 297,260.38 is: 445,776.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,985.26 : 1,298,645.70 = 297,260.38 : x
  2. Step 2: Convert to fraction form
    865,985.26/1,298,645.70 = 297,260.38/x
  3. Step 3: Cross multiply
    865,985.26x = 1,298,645.70 × 297,260.38
  4. Step 4: Simplify right side
    865,985.26x = 386,035,914,267.37
  5. Step 5: Solve for x
    x = 386,035,914,267.37/865,985.26
  6. Step 6: Final answer
    x = 445,776.54

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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.