Home / 878,884.16-1,212,811.04-491,624.80

Finding the Fourth Proportional to 878,884.16, 1,212,811.04 and 491,624.80

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Solution

The fourth proportional to 878,884.16, 1,212,811.04 and 491,624.80 is: 678,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,884.16 : 1,212,811.04 = 491,624.80 : x
  2. Step 2: Convert to fraction form
    878,884.16/1,212,811.04 = 491,624.80/x
  3. Step 3: Cross multiply
    878,884.16x = 1,212,811.04 × 491,624.80
  4. Step 4: Simplify right side
    878,884.16x = 596,247,983,174.83
  5. Step 5: Solve for x
    x = 596,247,983,174.83/878,884.16
  6. Step 6: Final answer
    x = 678,414.76

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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.