Home / 563,755.44-777,982.32-309,101.28

Finding the Fourth Proportional to 563,755.44, 777,982.32 and 309,101.28

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Solution

The fourth proportional to 563,755.44, 777,982.32 and 309,101.28 is: 426,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,755.44 : 777,982.32 = 309,101.28 : x
  2. Step 2: Convert to fraction form
    563,755.44/777,982.32 = 309,101.28/x
  3. Step 3: Cross multiply
    563,755.44x = 777,982.32 × 309,101.28
  4. Step 4: Simplify right side
    563,755.44x = 240,475,330,929.37
  5. Step 5: Solve for x
    x = 240,475,330,929.37/563,755.44
  6. Step 6: Final answer
    x = 426,559.66

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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.