Home / 389,885.11-584,848.32-109,424.23

Finding the Fourth Proportional to 389,885.11, 584,848.32 and 109,424.23

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Solution

The fourth proportional to 389,885.11, 584,848.32 and 109,424.23 is: 164,142.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,885.11 : 584,848.32 = 109,424.23 : x
  2. Step 2: Convert to fraction form
    389,885.11/584,848.32 = 109,424.23/x
  3. Step 3: Cross multiply
    389,885.11x = 584,848.32 × 109,424.23
  4. Step 4: Simplify right side
    389,885.11x = 63,996,575,620.67
  5. Step 5: Solve for x
    x = 63,996,575,620.67/389,885.11
  6. Step 6: Final answer
    x = 164,142.14

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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.