Home / 818,234.60-1,226,768.70-312,600.20

Finding the Fourth Proportional to 818,234.60, 1,226,768.70 and 312,600.20

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Solution

The fourth proportional to 818,234.60, 1,226,768.70 and 312,600.20 is: 468,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,234.60 : 1,226,768.70 = 312,600.20 : x
  2. Step 2: Convert to fraction form
    818,234.60/1,226,768.70 = 312,600.20/x
  3. Step 3: Cross multiply
    818,234.60x = 1,226,768.70 × 312,600.20
  4. Step 4: Simplify right side
    818,234.60x = 383,488,140,973.74
  5. Step 5: Solve for x
    x = 383,488,140,973.74/818,234.60
  6. Step 6: Final answer
    x = 468,677.49

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1.5x scale

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.