Home / 911,564.84-1,367,748.12-485,000.34

Finding the Fourth Proportional to 911,564.84, 1,367,748.12 and 485,000.34

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Solution

The fourth proportional to 911,564.84, 1,367,748.12 and 485,000.34 is: 727,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,564.84 : 1,367,748.12 = 485,000.34 : x
  2. Step 2: Convert to fraction form
    911,564.84/1,367,748.12 = 485,000.34/x
  3. Step 3: Cross multiply
    911,564.84x = 1,367,748.12 × 485,000.34
  4. Step 4: Simplify right side
    911,564.84x = 663,358,303,234.36
  5. Step 5: Solve for x
    x = 663,358,303,234.36/911,564.84
  6. Step 6: Final answer
    x = 727,713.79

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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.