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Finding the Fourth Proportional to 331,756.20, 497,955.06 and 313,774.20

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Solution

The fourth proportional to 331,756.20, 497,955.06 and 313,774.20 is: 470,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,756.20 : 497,955.06 = 313,774.20 : x
  2. Step 2: Convert to fraction form
    331,756.20/497,955.06 = 313,774.20/x
  3. Step 3: Cross multiply
    331,756.20x = 497,955.06 × 313,774.20
  4. Step 4: Simplify right side
    331,756.20x = 156,245,450,587.45
  5. Step 5: Solve for x
    x = 156,245,450,587.45/331,756.20
  6. Step 6: Final answer
    x = 470,964.67

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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.