Home / 812,223.82-1,219,035.57-563,080.78

Finding the Fourth Proportional to 812,223.82, 1,219,035.57 and 563,080.78

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Solution

The fourth proportional to 812,223.82, 1,219,035.57 and 563,080.78 is: 845,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,223.82 : 1,219,035.57 = 563,080.78 : x
  2. Step 2: Convert to fraction form
    812,223.82/1,219,035.57 = 563,080.78/x
  3. Step 3: Cross multiply
    812,223.82x = 1,219,035.57 × 563,080.78
  4. Step 4: Simplify right side
    812,223.82x = 686,415,496,555.76
  5. Step 5: Solve for x
    x = 686,415,496,555.76/812,223.82
  6. Step 6: Final answer
    x = 845,106.34

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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.