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Finding the Fourth Proportional to 486,104.12, 670,964.49 and 282,200.84

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Solution

The fourth proportional to 486,104.12, 670,964.49 and 282,200.84 is: 389,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,104.12 : 670,964.49 = 282,200.84 : x
  2. Step 2: Convert to fraction form
    486,104.12/670,964.49 = 282,200.84/x
  3. Step 3: Cross multiply
    486,104.12x = 670,964.49 × 282,200.84
  4. Step 4: Simplify right side
    486,104.12x = 189,346,742,688.17
  5. Step 5: Solve for x
    x = 189,346,742,688.17/486,104.12
  6. Step 6: Final answer
    x = 389,518.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.