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Finding the Fourth Proportional to 563,506.88, 777,639.49 and 308,852.60

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Solution

The fourth proportional to 563,506.88, 777,639.49 and 308,852.60 is: 426,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,506.88 : 777,639.49 = 308,852.60 : x
  2. Step 2: Convert to fraction form
    563,506.88/777,639.49 = 308,852.60/x
  3. Step 3: Cross multiply
    563,506.88x = 777,639.49 × 308,852.60
  4. Step 4: Simplify right side
    563,506.88x = 240,175,973,688.85
  5. Step 5: Solve for x
    x = 240,175,973,688.85/563,506.88
  6. Step 6: Final answer
    x = 426,216.58

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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.