Home / 829,756.20-1,244,002.50-380,604.72

Finding the Fourth Proportional to 829,756.20, 1,244,002.50 and 380,604.72

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Solution

The fourth proportional to 829,756.20, 1,244,002.50 and 380,604.72 is: 570,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,756.20 : 1,244,002.50 = 380,604.72 : x
  2. Step 2: Convert to fraction form
    829,756.20/1,244,002.50 = 380,604.72/x
  3. Step 3: Cross multiply
    829,756.20x = 1,244,002.50 × 380,604.72
  4. Step 4: Simplify right side
    829,756.20x = 473,473,223,191.80
  5. Step 5: Solve for x
    x = 473,473,223,191.80/829,756.20
  6. Step 6: Final answer
    x = 570,617.28

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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.