Home / 693,633.60-1,039,672.80-294,206.40

Finding the Fourth Proportional to 693,633.60, 1,039,672.80 and 294,206.40

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Solution

The fourth proportional to 693,633.60, 1,039,672.80 and 294,206.40 is: 440,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,633.60 : 1,039,672.80 = 294,206.40 : x
  2. Step 2: Convert to fraction form
    693,633.60/1,039,672.80 = 294,206.40/x
  3. Step 3: Cross multiply
    693,633.60x = 1,039,672.80 × 294,206.40
  4. Step 4: Simplify right side
    693,633.60x = 305,878,391,665.92
  5. Step 5: Solve for x
    x = 305,878,391,665.92/693,633.60
  6. Step 6: Final answer
    x = 440,979.78

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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.