Home / 865,309.03-1,298,086.56-266,320.10

Finding the Fourth Proportional to 865,309.03, 1,298,086.56 and 266,320.10

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Solution

The fourth proportional to 865,309.03, 1,298,086.56 and 266,320.10 is: 399,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,309.03 : 1,298,086.56 = 266,320.10 : x
  2. Step 2: Convert to fraction form
    865,309.03/1,298,086.56 = 266,320.10/x
  3. Step 3: Cross multiply
    865,309.03x = 1,298,086.56 × 266,320.10
  4. Step 4: Simplify right side
    865,309.03x = 345,706,545,713.07
  5. Step 5: Solve for x
    x = 345,706,545,713.07/865,309.03
  6. Step 6: Final answer
    x = 399,518.02

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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.