Home / 688,131.20-1,032,196.88-214,857.08

Finding the Fourth Proportional to 688,131.20, 1,032,196.88 and 214,857.08

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Solution

The fourth proportional to 688,131.20, 1,032,196.88 and 214,857.08 is: 322,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,131.20 : 1,032,196.88 = 214,857.08 : x
  2. Step 2: Convert to fraction form
    688,131.20/1,032,196.88 = 214,857.08/x
  3. Step 3: Cross multiply
    688,131.20x = 1,032,196.88 × 214,857.08
  4. Step 4: Simplify right side
    688,131.20x = 221,774,807,621.91
  5. Step 5: Solve for x
    x = 221,774,807,621.91/688,131.20
  6. Step 6: Final answer
    x = 322,285.64

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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.