Home / 389,615.40-584,442.30-202,991.40

Finding the Fourth Proportional to 389,615.40, 584,442.30 and 202,991.40

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Solution

The fourth proportional to 389,615.40, 584,442.30 and 202,991.40 is: 304,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,615.40 : 584,442.30 = 202,991.40 : x
  2. Step 2: Convert to fraction form
    389,615.40/584,442.30 = 202,991.40/x
  3. Step 3: Cross multiply
    389,615.40x = 584,442.30 × 202,991.40
  4. Step 4: Simplify right side
    389,615.40x = 118,636,760,696.22
  5. Step 5: Solve for x
    x = 118,636,760,696.22/389,615.40
  6. Step 6: Final answer
    x = 304,497.10

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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.