Home / 389,606.29-584,431.67-109,145.41

Finding the Fourth Proportional to 389,606.29, 584,431.67 and 109,145.41

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Solution

The fourth proportional to 389,606.29, 584,431.67 and 109,145.41 is: 163,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,606.29 : 584,431.67 = 109,145.41 : x
  2. Step 2: Convert to fraction form
    389,606.29/584,431.67 = 109,145.41/x
  3. Step 3: Cross multiply
    389,606.29x = 584,431.67 × 109,145.41
  4. Step 4: Simplify right side
    389,606.29x = 63,788,034,239.13
  5. Step 5: Solve for x
    x = 63,788,034,239.13/389,606.29
  6. Step 6: Final answer
    x = 163,724.34

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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.