Home / 817,712.88-1,226,483.04-218,734.50

Finding the Fourth Proportional to 817,712.88, 1,226,483.04 and 218,734.50

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Solution

The fourth proportional to 817,712.88, 1,226,483.04 and 218,734.50 is: 328,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,712.88 : 1,226,483.04 = 218,734.50 : x
  2. Step 2: Convert to fraction form
    817,712.88/1,226,483.04 = 218,734.50/x
  3. Step 3: Cross multiply
    817,712.88x = 1,226,483.04 × 218,734.50
  4. Step 4: Simplify right side
    817,712.88x = 268,274,154,512.88
  5. Step 5: Solve for x
    x = 268,274,154,512.88/817,712.88
  6. Step 6: Final answer
    x = 328,078.67

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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.