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Finding the Fourth Proportional to 563,148.65, 777,200.87 and 321,467.54

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Solution

The fourth proportional to 563,148.65, 777,200.87 and 321,467.54 is: 443,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,148.65 : 777,200.87 = 321,467.54 : x
  2. Step 2: Convert to fraction form
    563,148.65/777,200.87 = 321,467.54/x
  3. Step 3: Cross multiply
    563,148.65x = 777,200.87 × 321,467.54
  4. Step 4: Simplify right side
    563,148.65x = 249,844,848,682.42
  5. Step 5: Solve for x
    x = 249,844,848,682.42/563,148.65
  6. Step 6: Final answer
    x = 443,657.01

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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.