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Finding the Fourth Proportional to 563,084.88, 777,069.72 and 321,362.64

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Solution

The fourth proportional to 563,084.88, 777,069.72 and 321,362.64 is: 443,487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,084.88 : 777,069.72 = 321,362.64 : x
  2. Step 2: Convert to fraction form
    563,084.88/777,069.72 = 321,362.64/x
  3. Step 3: Cross multiply
    563,084.88x = 777,069.72 × 321,362.64
  4. Step 4: Simplify right side
    563,084.88x = 249,721,176,683.26
  5. Step 5: Solve for x
    x = 249,721,176,683.26/563,084.88
  6. Step 6: Final answer
    x = 443,487.63

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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.