Home / 688,345.50-1,032,163.70-308,940.98

Finding the Fourth Proportional to 688,345.50, 1,032,163.70 and 308,940.98

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Solution

The fourth proportional to 688,345.50, 1,032,163.70 and 308,940.98 is: 463,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,345.50 : 1,032,163.70 = 308,940.98 : x
  2. Step 2: Convert to fraction form
    688,345.50/1,032,163.70 = 308,940.98/x
  3. Step 3: Cross multiply
    688,345.50x = 1,032,163.70 × 308,940.98
  4. Step 4: Simplify right side
    688,345.50x = 318,877,664,998.43
  5. Step 5: Solve for x
    x = 318,877,664,998.43/688,345.50
  6. Step 6: Final answer
    x = 463,252.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.