Home / 666,845.10-999,533.79-329,386.14

Finding the Fourth Proportional to 666,845.10, 999,533.79 and 329,386.14

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Solution

The fourth proportional to 666,845.10, 999,533.79 and 329,386.14 is: 493,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,845.10 : 999,533.79 = 329,386.14 : x
  2. Step 2: Convert to fraction form
    666,845.10/999,533.79 = 329,386.14/x
  3. Step 3: Cross multiply
    666,845.10x = 999,533.79 × 329,386.14
  4. Step 4: Simplify right side
    666,845.10x = 329,232,576,887.67
  5. Step 5: Solve for x
    x = 329,232,576,887.67/666,845.10
  6. Step 6: Final answer
    x = 493,716.72

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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.