Home / 784,390.20-1,176,449.88-208,017.48

Finding the Fourth Proportional to 784,390.20, 1,176,449.88 and 208,017.48

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Solution

The fourth proportional to 784,390.20, 1,176,449.88 and 208,017.48 is: 311,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,390.20 : 1,176,449.88 = 208,017.48 : x
  2. Step 2: Convert to fraction form
    784,390.20/1,176,449.88 = 208,017.48/x
  3. Step 3: Cross multiply
    784,390.20x = 1,176,449.88 × 208,017.48
  4. Step 4: Simplify right side
    784,390.20x = 244,722,139,383.90
  5. Step 5: Solve for x
    x = 244,722,139,383.90/784,390.20
  6. Step 6: Final answer
    x = 311,990.31

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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.