Home / 1,455,811.20-2,183,716.80-390,960.90

Finding the Fourth Proportional to 1,455,811.20, 2,183,716.80 and 390,960.90

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Solution

The fourth proportional to 1,455,811.20, 2,183,716.80 and 390,960.90 is: 586,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,811.20 : 2,183,716.80 = 390,960.90 : x
  2. Step 2: Convert to fraction form
    1,455,811.20/2,183,716.80 = 390,960.90/x
  3. Step 3: Cross multiply
    1,455,811.20x = 2,183,716.80 × 390,960.90
  4. Step 4: Simplify right side
    1,455,811.20x = 853,747,885,473.12
  5. Step 5: Solve for x
    x = 853,747,885,473.12/1,455,811.20
  6. Step 6: Final answer
    x = 586,441.35

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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.