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Finding the Fourth Proportional to 563,099.85, 776,891.75 and 345,227.85

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Solution

The fourth proportional to 563,099.85, 776,891.75 and 345,227.85 is: 476,300.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,099.85 : 776,891.75 = 345,227.85 : x
  2. Step 2: Convert to fraction form
    563,099.85/776,891.75 = 345,227.85/x
  3. Step 3: Cross multiply
    563,099.85x = 776,891.75 × 345,227.85
  4. Step 4: Simplify right side
    563,099.85x = 268,204,666,809.10
  5. Step 5: Solve for x
    x = 268,204,666,809.10/563,099.85
  6. Step 6: Final answer
    x = 476,300.37

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1.5x scale

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.