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Finding the Fourth Proportional to 563,644.98, 777,800.70 and 321,880.32

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Solution

The fourth proportional to 563,644.98, 777,800.70 and 321,880.32 is: 444,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,644.98 : 777,800.70 = 321,880.32 : x
  2. Step 2: Convert to fraction form
    563,644.98/777,800.70 = 321,880.32/x
  3. Step 3: Cross multiply
    563,644.98x = 777,800.70 × 321,880.32
  4. Step 4: Simplify right side
    563,644.98x = 250,358,738,212.22
  5. Step 5: Solve for x
    x = 250,358,738,212.22/563,644.98
  6. Step 6: Final answer
    x = 444,178.07

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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.